A congruence transformation that maps triangle RST to triangle UVW is a reflection along the line y = 1, followed by a translation 2 units right and down by 1 units.
A congruence transformation that maps triangle RST to triangle UVW is a rotation of 180°, followed by a translation 2 units left and down by 5 units.
What is a transformation?In Mathematics and Geometry, a transformation is the movement of a point from its initial position to a new location. This ultimately implies that, when a geometric figure or object is transformed, all of its points would also be transformed;
What is a reflection?In Mathematics and Geometry, a reflection can be defined as a type of transformation which moves every point of the geometric figure such as a triangle, by producing a flipped, but mirror image of the geometric figure.
By critically observing the geometric figures, we can reasonably infer and logically deduce that the pre-image underwent a sequence of congruence transformation to produce the image.
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___________ is the number of individual buy orders and the total number of shares that wish to buy.
Buy-side order flow is the number of individual buy orders and the total number of shares that wish to buy.
This is a crucial metric that is used by traders, investors, and analysts to gauge the demand for a particular security or asset.
The buy-side order flow refers to the number of shares that market participants want to purchase at a given time, and it provides valuable insights into the sentiment of the market. If there are more buy orders than sell orders, then there is a higher demand for the security, which can lead to an increase in the price of the asset. On the other hand, if there are more sell orders than buy orders, then there is a higher supply of the security, which can lead to a decrease in the price of the asset.
Traders and investors use buy-side order flow data to help them make informed decisions about when to buy or sell a security. By analyzing the number of buy orders and the total number of shares that wish to buy, they can identify trends and patterns in the market, and adjust their strategies accordingly. Additionally, buy-side order flow data can be used to help identify potential support and resistance levels for a security, which can be useful in setting stop-loss orders and other risk management measures.
Overall, the buy-side order flow is an important metric that provides valuable insights into the sentiment of the market and helps traders and investors make informed decisions about their investments.
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can someone answer my new math questions please
Answer:
yes
Step-by-step explanation:
1) Fully factorise each expression 2x +8
2(x+4)
hope this helps!!!
Plssss help it is asking to find the surface area of this triangular prism
The total surface area of the triangular prism is calculated to be equal to 608 square centimeters.
How to calculate for the total surface area of the triangular prismThe triangular prism can be observed to be a large rectangle and two identical triangles, so we shall calculate for the total surface area as follows:
area of one triangle = 1/2 × 8 cm × 12 cm
area of one triangle = 48 cm²
area of the two triangle faces = 2(48) = 96 cm²
area of the large rectangle face = (10 + 12 + 12) cm × 16 cm = 512 cm²
Total surface area of prism = 96 cm² + 512 cm² = 608 cm²
Therefore, the total surface area of the triangular prism is calculated to be equal to 608 square centimeters.
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as part of their quality assurance program, a cell phone manufacturer inspects the display on each phone selected through random sampling to verify that the screen displays all colors with the brilliance their customers have come to expect. each phone in a sample is turned on, run through a self-test procedure, and classified as either acceptable or unacceptable based on its test performance. suppose 30 phones are randomly tested each day for seven days, and the average daily proportion of unacceptable phones is found to be 0.01. what lower and upper control limits should the manufacturer actually use in the resulting control chart?
The lower and upper control limits that the manufacturer should use in the resulting control chart are LCL = 0.023,UCL = 0.043
To calculate the lower and upper control limits for the control chart, we need to use the following formula:
Lower control limit (LCL) = average proportion of defects - 3 x square root of [(average proportion of defects x (1 - average proportion of defects)) / sample size]
Upper control limit (UCL) = average proportion of defects + 3 x square root of [(average proportion of defects x (1 - average proportion of defects)) / sample size]
Using the given information, we can plug in the values to get:
LCL = 0.01 - 3 x square root of [(0.01 x 0.99) / 30] = -0.023
UCL = 0.01 + 3 x square root of [(0.01 x 0.99) / 30] = 0.043
However, since control limits cannot be negative, the lower control limit should be set to zero.
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The manufacturer should use control limits of 0 for the lower limit and 0.136 for the upper limit in their control chart for monitoring the proportion of unacceptable phones in their quality assurance program.
Determine the lower and upper control limits for the manufacturer's control chart, we first need to calculate the standard deviation of the proportion of unacceptable phones based on the given information.
To do this, we can use the formula:
[tex]Standard deviation = \sqrt(p\times(1-p)/n)[/tex]
p is the proportion of unacceptable phones (0.01), and n is the sample size (30 phones per day for 7 days = 210 total phones).
Plugging in these values, we get:
[tex]Standard deviation = \sqrt(0.01\times(1-0.01)/210) = 0.042[/tex]
Next, we can use this standard deviation to calculate the control limits. The lower control limit (LCL) is given by:
[tex][tex]LCL = p - 3\times\sqrt(p\times(1-p)/n)[/tex][/tex]
and the upper control limit (UCL) is given by:
[tex]UCL = p + 3\times\sqrt(p\times(1-p)/n)[/tex]
Plugging in our values, we get:
[tex]LCL = 0.01 - 3\times0.042 = -0.075[/tex]
[tex]UCL = 0.01 + 3\times0.042 = 0.095[/tex]
Values don't make sense - the proportion of unacceptable phones cannot be negative, and the UCL is above 1, which is also impossible.
To correct for this, we can use the formula:
[tex]LCL = max(0, p - 3\times\sqrt(p\times(1-p)/n))[/tex]
[tex]UCL = min(1, p + 3\times\sqrt(p\times(1-p)/n))[/tex]
This ensures that the control limits are within the range of possible values for the proportion of unacceptable phones.
Plugging in our values with this formula, we get:
[tex]LCL = max(0, 0.01 - 3\times0.042) = 0[/tex]
[tex]UCL = min(1, 0.01 + 3\times0.042) = 0.136[/tex]
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Sky Launch Trampoline Park charges customers $9.50 per hour they spend jumping. Each customer must
also pay $2.50 for grip socks. Create a table or t-chart. Write an equation in slope-intercept form to represent this linear function.
Answer:
2.50 + 9.50h
Step-by-step explanation:
Sky Launch Trampoline Park charges customers $9.50 per hour they spend jumping. Each customer must also pay $2.50 for grip socks.
Let the number of hours be h.
The equation will be:
= 2.50 + (9.50 × h)
= 2.50 + 9.50h
A line intersects the points (-3, 4) and
(-2, 3). What is the slope-intercept
equation for this line?
y = -x + [?]
The slope-intercept equation of line is -1 and equation will be y = -x - 1.
What is the slope?
m = (y2 - y1) / (x2 - x1) is the formula for calculating slope from two points on a line, (x1, y1) and (x2, y2). Here,
m = the line's slope
x1 is equal to the initial point's x-coordinate.
y1 is the first point's y-coordinate.
x2 is equal to the second point's x-coordinate.
The second point's x-coordinate is equal to y2.
x1 = -3, y1 = 4; x2= -2, y2=3
m = (3-4)/(-2 - (-3))
= -1 / (-2+3)
= -1/1
m = -1
Substitute the value in given equation:
y = -x + (-1)
y = -x - 1
Hence, the slope-intercept equation of line is -1 and equation will be y = -x - 1.
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2. The value, v(t), of a car depreciates according to the function v(t) = P(.85)', where P is the
purchase price of the car and t is the time, in years, since the car was purchased. State the
percent that the value of the car decreases by each year. Justify your answer.
the value of the car decreases by 15 percent each year. This means that the value of the car decreases to 85% of its previous year's value every year.
what do you mean by term decreases ?
In this context, "decreases" means that the value of the car is getting smaller over time. The term "decrease" is often used in mathematics to describe a decrease in the numerical value of a quantity. In this case, the value of the car is decreasing by 15% each year, which means that its value is getting smaller by 15% of the previous year's value.
In the given question,
The given function for the value of the car is:
v(t) = P(0.85)ⁿ
Here, P is the initial purchase price of the car, and t is the time in years since the car was purchased.
To find the percent that the value of the car decreases by each year, we need to find the ratio of the decrease in value to the initial value, and express it as a percentage.
Let's consider the value of the car after one year, i.e., when t=1. The value of the car after one year is:
v(1) = P(0.85)¹ = 0.85P
The decrease in value from the initial value P is:
P - v(1) = P - 0.85P = 0.15P
Therefore, the ratio of the decrease in value to the initial value is:
(0.15P/P) = 0.15
To express this ratio as a percentage, we multiply by 100, which gives:
0.15 x 100% = 15%
Therefore, the value of the car decreases by 15% each year. This means that the value of the car decreases to 85% of its previous year's value every year.
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five rectangles, and have integer side lengths. rectangle has a width of , rectangle has a width of rectangle has a length of rectangle has a length of and rectangle has a length of if all five rectangles have the same area , what is the least possible value of ?
All five rectangles have the same area of 60, and the sum of their dimensions is:
2 + 30 + 4 + 15 + 6 + 10 + 8 + 7.5 + 10
Let the width of rectangle 1 be w1, the width of rectangle 2 be w2, and so on. We know that all five rectangles have the same area, so we can set up an equation:
[tex]w1 * l1 = w2 * l2 = w3 * l3 = w4 * l4 = w5 * l5[/tex]
We can simplify this equation by dividing both sides by w1 * l1, which gives:
[tex]1 = (w2 * l2) / (w1 * l1) = (w3 * l3) / (w1 * l1) = (w4 * l4) / (w1 * l1) = (w5 * l5) / (w1 * l1)[/tex]
Let's define a new variable x = w2 * l2 = w3 * l3 = w4 * l4 = w5 * l5. Then we have:
[tex]w1 * l1 = xw2 * l2 = xw3 * l3 = xw4 * l4 = xw5 * l5 = x[/tex]
Now we need to find the least possible value of w1 + l1 + w2 + l2 + w3 + l3 + w4 + l4 + w5 + l5. Since w1 * l1 = x, we can rewrite this as:
[tex]w1 + l1 + 4 * sqrt(x / w1) + 4 * sqrt(w1 / x)[/tex]
To find the minimum value of this expression, we can take its derivative with respect to w1, set it equal to zero, and solve for w1:
[tex]d/dw1 (w1 + l1 + 4 * sqrt(x / w1) + 4 * sqrt(w1 / x)) = 1 - 2 * sqrt(x) / w1^1.5 + 2 * sqrt(x) / w1^2.5 = 0[/tex]
Solving for w1, we get:
[tex]w1 = 2 * x^(1/4)[/tex]
Substituting this back into our expression for the sum of the rectangle dimensions, we get:
[tex]w1 + l1 + 4 * sqrt(x / w1) + 4 * sqrt(w1 / x) = 2 * x^(1/4) + 2 * x^(3/4) + 8 * (x / 2)^(1/4)[/tex]
To find the minimum value of this expression, we can take its derivative with respect to x, set it equal to zero, and solve for x:
[tex]d/dx (2 * x^(1/4) + 2 * x^(3/4) + 8 * (x / 2)^(1/4)) = 1/2 * x^(-3/4) + 3/2 * x^(1/4) + 2 / (2 * x)^(3/4) = 0[/tex]
Solving for x, we get:
x = 4
Therefore, the least possible value of w1 is:
w1 =[tex]2 * x^(1/4) = 2[/tex]
And the dimensions of the rectangles are:
Rectangle 1: 2 x 30
Rectangle 2: 4 x 15
Rectangle 3: 6 x 10
Rectangle 4: 8 x 7.5
Rectangle 5: 10 x 6
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Find the number of permutations with of the letters in each word 1)CANNON
2)BANANA
3)TOMORROW
4)REFERENCE
The number of possible letter combinations in the words presented is as follows:
CANNON: 2520
BANANA: 120
TOMORROW: 2520
REFERENCE: 20160
What is permutation?It is used to determine how many distinct arrangements can be made from a given set of elements.
1) CANNON: CANNON is made up of seven letters, two of which are identical 'N's. So, the following formula can be used to get the total number of permutations for CANNON:
Total number of permutations = 7! / 2!
= (7 x 6 x 5 x 4 x 3 x 2 x 1) / 2!
= 2520
2) BANANA: BANANA is made up of six letters, three of which are the letter 'A' and are similar. The total amount of BANANA combinations can be calculated using the formula below:
Total number of permutations = 6! / 3!
= (6 x 5 x 4 x 3 x 2 x 1) / 3!
= 120
3) TOMORROW: The word TOMORROW is made up of seven letters, two of which are identical 'O's. Thus, the sum of TOMORROW's permutations can be determined as follows:
Total number of permutations = 7! / 2!
= (7 x 6 x 5 x 4 x 3 x 2 x 1) / 2!
= 2520
4) REFERENCE: Eight letters make up REFERENCE, two of which are identical 'E's. So, the following formula can be used to determine the total number of permutations for REFERENCE:
Total number of permutations = 8! / 2!
= (8 x 7 x 6 x 5 x 4 x 3 x 2 x 1) / 2!
= 20160
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at a blood drive, 4 donors with type o blood, 3 donors with type a blood, and 2 donors with type b blood are in line. in how many distinguishable ways can the donors be in line?
The total distinguishable ways can the donors be in line is 362,736.
The total number of distinguishable ways:
9! = 9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1 = 362,880
To subtract the number of in-distinguishable arrangements:
(4! x 3!) + (3! x 2!) = 144
There are 362,736 distinguishable ways in which four donors with type O blood, three donors with type A blood, and two donors with type B blood can be in line.
This is calculated by first determining the total number of distinguishable arrangements, which is 9!.
Then,
The number of indistinguishable arrangements is subtracted from the total.
Which is done by multiplying the number of arrangements for each blood type separately and then adding them together.
The result is then subtracted from the total, leaving the number of distinguishable ways.
The total number of distinguishable ways is:
362,880 - 144 = 362,736
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given are five observations for two variables, and . excel file: data14-25.xlsx the estimated regression equation is . a. what is the value of the standard error of the estimate (to decimals)?
The esteem of the standard error of the estimate (to two decimal places) is 1.34.
To calculate the standard blunder of the gauge (moreover known as the standard blunder of the relapse or the root cruel square, we ought to utilize the taking after equation:
SE = sqrt [ (Σ(y - yhat)[tex]^{2}[/tex]) / (n - k) ]
yhat = 0.471x + 2.606
We too know that there are 5 perceptions, and there's one free variable (x). Utilizing the information from the Exceed expectations record, ready to calculate the anticipated values of y for each perception by stopping the x values into the relapse condition:
yhat1 = 2.696
yhat2 = 3.638
yhat3 = 4.581
yhat4 = 5.524
yhat5 = 6.466
SE = sqrt [ ( (4.75 - 2.696)[tex]^{2}[/tex] + (5.36 - 3.638)[tex]^{2}[/tex]+ (5.95 - 4.581)[tex]^{2}[/tex] + (6.66 - 5.524)[tex]^{2}[/tex]+ (7.03 - 6.466)[tex]^{2}[/tex]) / (5 - 2) ]
SE = sqrt [ (5.3546) / 3 ]
SE = 1.335
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Consider a sequence whose first five terms are:-1.75, -0.5, 0.75, 2, 3.25
Which explicit function (with domain all integers n ≥ 1) could be used to define and continue this sequence?
Step-by-step explanation:
+ 1.25
every new term is the previous term + 1.25.
with starting value -1.75
f(n) = 1.25n - 1.75
Dilate point S by a scale factor of 1/2
PLEASE JUST TELL WHERE THE POINT MUST BE LOCATED DONT GIVE A LONG EXPLANATION AND IF U CAN UPLOAD A PIC OF THE ANSWER
The position of point S after dilating will be half of the original. The dilated point S' has been shown below.
What is dilation?
Using a modification known as dilation, an object can be resized. Through dilatation, the objects can be resized or enlarged. This transformation results in a shape that is a perfect replica of the original image. The form's dimensions do vary, though. An expansion or contraction of the original form is required for a dilatation. This shift is referred to as a scale factor.
We are given a graph showing position of point S.
Now, on dilating the point by a scale factor of [tex]\frac{1}{2}[/tex], we get that the point will be located at half of the original.
The point has been located and attached in the image below.
Hence, the required solution has been obtained.
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what does the red line on the graph represent? what does the red line on the graph represent? the average amount of solid waste generated by each household in the united states per year the total amount of solid waste generated by all people in the united states per year the average amount of solid waste generated by each person in the united states per year the period of time in years
The red line on the graph may also include other lines that represent related data, such as the total amount of solid waste generated by all people in the United States per year, or the period of time in years being measured.
Red line on the graph represents the average amount of solid waste generated by each person in the United States per year.
The red line on the graph is a useful tool for understanding the impact of solid waste on the environment and society as a whole.
It helps us to identify areas where we can make changes to reduce waste and improve our overall environmental performance and serves as a reminder of the importance of responsible consumption and waste management practices.
Red line on the graph represents the average amount of solid waste generated by each person in the United States per year.
This is a key metric in measuring the environmental impact of waste production in the country.
The average amount of solid waste generated per person is an important figure because it provides a more accurate picture of individual behavior and consumption patterns.
It takes into account factors such as population growth, changes in household size, and shifts in lifestyle and consumption habits.
By tracking this metric over time, policymakers and environmental advocates can gain insight into trends and patterns in waste generation and identify opportunities for reducing waste and promoting sustainability.
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Which graph shows the solution to the inequality Negative 3 x minus 7 less-than 20 Group of answer choices A number lines goes from negative 10 to positive 10. An open circle appears at positive 9. The number line is shaded from positive 9 through negative 10. A number line goes from negative 10 to positive 10. An open circle appears at positive 9. The number line is shaded from positive 9 through positive 10. A number line goes from negative 10 to positive 10. An open circle appears at negative 9. The number line is shaded from negative 9 through positive 10. A number line goes from negative 10 to positive 10. An open circle appears at negative 9. The number line is shaded from negative 9 through negative 10.
The solution is all values of x greater than -9.
What is the correct graph for the given inequality?The correct graph for the given inequality "Negative 3x - 7 < 20" is:
From negative 10 to positive 10, a number line runs. An open circle shows up at negative 9. From negative 9 to positive 10, the number line is shaded.
To chart the arrangement, we initially confine the variable by adding 7 to the two sides of the imbalance:
Negative 3x - 7 + 7 < 20 + 7
Negative 3x < 27
Next, we divide both sides by -3, remembering to flip the inequality sign since we're dividing by a negative number:
Negative 3x/-3 > 27/-3
x > -9
Therefore, the arrangement is all upsides of x more prominent than - 9. Since these are the values that satisfy the inequality, we graph this by drawing an open circle at -9 on the number line and shading all values to the right of -9.
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Last Friday, AT&T closed at $41.68. AT&T pays an annual dividend of $1.98. Calculate the dividend yield
Answer: The dividend yield is the annual dividend payment divided by the stock's current market price, expressed as a percentage.
Dividend yield = (Annual dividend payment / Stock's current market price) x 100%
In this case:
Annual dividend payment = $1.98
Stock's current market price = $41.68
Dividend yield = ($1.98 / $41.68) x 100% = 4.75%
Therefore, the dividend yield for AT&T is 4.75%.
Step-by-step explanation:
5. This solid was created by joining two right rectangular prisms.
4½ cm
8 cm
4 cm
-9 cm
10½ cm
Enter the volume of the solid, in cubic centimeters.
The volume of the solid as shown in the diagram is 540 cm².
What is volume?Volume is the space occupied by a solid shape.
To calculate the volume of the of the solid, we use the formula below
Formula:
V = LWH+lwh............................ Equation 1Where:
V = Volume of the solid L = Length of the bigger prismW = Width of the bigger prismH = Height of the bigger prisml = Length of the smaller prismw = Width of the smaller prismh = Height of the smaller prismFrom the diagram in question,
Given:
L = 10.5 cmW = 9 cmH = 4 cml = 9 cmw = 4.5 cmh = 4 cmSubstitute these values into equation 1
A = (10.5×9×4)+(9×4.5×4)A = 378+162A = 540 cm³Hence, the volume is 540 cm³.
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Verify that the segments are parallel.
10. CD || AB
This means that the corresponding sides of the two triangles are in proportion, and therefore CD is parallel to AB, as required.
What is triangle?A triangle is a polygon with three sides and three angles. It is one of the basic shapes in geometry and is often used in mathematics, science, engineering, and art. Triangles can be classified into different types based on the length of their sides and the size of their angles. Triangles are used in various applications, such as in the construction of buildings, bridges, and other structures, as well as in navigation and surveying. They are also important in various fields of mathematics, including trigonometry and geometry.
Here,
To use similarity theorems to show that CD is parallel to AB, we need to first establish that triangles AEB and CED are similar. If we can show that these triangles are similar, then we can use the corresponding angles theorem, which states that if two pairs of corresponding angles are congruent, then the lines containing the sides are parallel.
Let's compare the two triangles AEB and CED:
Angle AEB is congruent to angle CED (both are vertical angles).
Angle EAB is congruent to angle ECD (both are alternate interior angles formed by a transversal cutting parallel lines AB and CD).
Angle BAE is congruent to angle DCE (both are alternate interior angles formed by a transversal cutting parallel lines AB and CD).
Therefore, we have established that triangles AEB and CED are similar by the angle-angle-angle similarity theorem.
Now that we have shown that the triangles are similar, we can use the corresponding sides theorem, which states that the corresponding sides of similar triangles are in proportion, to find out if CD is parallel to AB.
The corresponding sides of AEB and CED are:
AE/CE = AB/CD
Substituting the given values, we have:
AC + CE / CE = AB / BD
4 + 12 / 12 = AB / (14/3)
16/12 = AB / (14/3)
AB = (16/12) x (14/3)
= 56/9
Now we can use the corresponding sides theorem to find the length of CD:
AE/CE = AB/CD
Substituting the values we have found, we get:
4/12 = (56/9)/CD
CD = (56/9) x (12/4)
= 14
Since we have found that AB = 56/9 and CD = 14, we can see that:
AB/CD = (56/9)/14
= 4/3
This means that the corresponding sides of the two triangles are in proportion, and therefore CD is parallel to AB, as required.
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write a equation of the line that prasses through (2,-4) and (0,-4)
Answer:
To write the equation of the line that passes through the points (2, -4) and (0, -4), we can use the point-slope form of a linear equation, which is:
y - y1 = m(x - x1)
Where (x1, y1) is one of the points on the line, and m is the slope of the line.
In this case, both points have the same y-coordinate, which means that the line is horizontal and has a slope of 0. We can choose either point to use in the equation, so let's use (2, -4):
y - (-4) = 0(x - 2)
Simplifying this equation, we get:
y + 4 = 0
y = -4
So the equation of the line that passes through the points (2, -4) and (0, -4) is y = -4, which is a horizontal line at y-coordinate -4.
Can someone help me asap? It’s due tomorrow. I will give brainiest if it’s all correct.
Answer:
1.a
2.c
3.d
4.b
Step-by-step explanation:
Write the point-slope form of the equation of the line that passes through the points (6, -9) and (7, 1). Include your work in your final answer. Type your answer in the box provided to submit your solution.
Therefore , the solution of the given problem of equation comes out to be 10x - y = 51 is the point-slope form of the equation of the line passing through the points (6, -9) and (7, 1).
Explain the equation.Variable words are frequently used in complex algorithms to show consistency between two arguments that are opposed to one another. Academic expressions called equations are used to show the equality of various academic figures. Take into account the details in the z + 7 proposals.
Here,
The equation for the line passing between the points (6, -9) and (7, 1) must be found in the point-slope form.
Using the equation m = (y2 - y1) / (x2 - x1), find the slope (m) of the line, where (x1, y1) and (x2, y2) are the coordinates of the two points.
=> (x1, y1) = (6, -9)
=> (x2, y2) = (7, 1)
=> m = (1 - (-9)) / (7 - 6)
=> m = 10 / 1 m = 10
Consequently, the line's slope is 10.
=> y - y1 = m(x - x1)
=> m = 10 (x1, y1) = (6, -9)
=> y - (-9) = 10(x - 6)
=> y + 9 = 10x - 60
=> 10x - y = 51
Therefore, 10x - y = 51 is the point-slope form of the equation of the line passing through the points (6, -9) and (7, 1).
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Which inequality is true when the value of w is -3?
find missing parts of the triangle
The length of the side b for the right triangle ABC is equal to 5.276, and the measures of angle A and B are 64 and 26 to the nearest degree using the sine rule.
What is the sine ruleThe sine rule is a relationship between the size of an angle in a triangle and the opposing side.
The side length b is derived using the Pythagoras rule as follows:
b = √(12.2² - 11²)
b = 5.276
Using the sine rule;
12.2/sin90 = 11/sinA
A = sin⁻¹(11 × sin90)/12.2 {cross multiplication}
A = 64.4
12.2/sin90 = 5.3/sinB
B = sin⁻¹(5.276 × sin90)/12.2 {cross multiplication}
B = 25.6
Therefore, the length of the side b for the right triangle ABC is equal to 5.276, and the measures of angle A and B are 64 and 26 to the nearest degree using the sine rule.
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CAN SOMEONE PLEASE HELP ME WITH THIS :((
What is the value or arc PQ? Only enter numerical values.
The value of arc PQ is 110°
What is circumference of a circle?The circumference of a circle is the length of the 360 degree arc of that circle. Therefore the sum of the arc on a circumference of a circle is 360°
Therefore ,
8x-10+ 6x + 10x+10 = 360
24x -10+10 = 360
24x = 360
divide both sides by 24
x = 360/24
x = 15
therefore the value of x is 15
Arc PQ = 8x -10
substitute 15 for x
ArcPQ = 8×15-10
= 120-10
= 110°
therefore the value of arc PQ is 110°
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I need a bit of help please
The slope of the line in the reduced form is 4 / 7.
How to find the slope of a line?The slope of a line is the change in the dependent variable with respect to the change in the independent variable.
Therefore,
slope = m = change in y / change in x
slope = m = y₂ - y₁ / x₂ - x₁
P = (2, 3)
Q = (9, 7)
x₁ = 2
x₂ = 9
y₁ = 3
y₂ = 7
Therefore,
slope = 7 - 3 / 9 - 2
slope = 4 / 7
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Which decimal is less than 0. 8 and greater than 0. 02
A. 0. 81
B. 0. 46
C. 0. 86
D. 0. 6
The decimal which is less than 0. 8 and greater than 0. 02 is 0. 46 (option B).
To answer this question, we need to understand how decimals work. A decimal is a number that represents a value less than one, and it is denoted by a dot or a period. The digits that come after the dot represent the number of tenths, hundredths, thousandths, etc., depending on the place value of the digit.
Now, let's consider the given options: 0.81, 0.46, 0.86, and 0.6. We need to find the decimal that lies between 0.8 and 0.02.
We can eliminate option D, 0.6, as it is less than 0.8. Similarly, we can eliminate option A, 0.81, as it is greater than 0.8.
To choose between options B, 0.46, and C, 0.86, we need to compare them with the given values, 0.8 and 0.02. We can see that 0.46 is less than 0.8 but greater than 0.02.
Therefore, the answer is option B, 0.46.
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An airplane is flying at a height of 3 miles above the ground. The distance along the ground from the
airplane to the airport is 7.5 miles. What is the angle of depression from the airplane to the airport?
Round to the nearest degree.
Answer:
the angle of depression is approx 22 degrees
Step-by-step explanation:
Model drawn below to visualize
I represented the angle of depression as x
Since two side lengths are given, we can use tangent to find the angle of depression
tan x= 3/7.5
We then use inverse tangent to find the angle measure:
m<x=[tex]tan^{-1}[/tex](3/7.5)
m<x is approx 21.8 or 22 when rounded to the nearest degree
(when using tan, inverse tan, sin, cos, inv... use deg on calculator when finding angle of depression, solving triangles, etc.)
What is the missing length of a rectangular prism where the height and width are both 9 cm and the surface area is 432 cm2?
The missing length is 7.5 cm.
What is a rectangular prism?
A three-dimensional solid form with six faces, including rectangular bases, is called a rectangular prism. A rectangular prism also refers to a cuboid. A cuboid and a rectangular prism have the same cross-section.
Here, we have
Let the missing length be x cm.
The formula for the surface area of a rectangular prism is:
SA = 2lw + 2lh + 2wh
We are given that the height and width are both 9 cm, so we can substitute those values and simplify:
432 = 2(x)(9) + 2(x)(9) + 2(9)(9)
432 = 18x + 18x + 162
432 - 162 = 36x
270 = 36x
x = 270/36
x = 7.5
Hence, the missing length is 7.5 cm.
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A circle with center O and radius 5 has central angle XOY. X and Y are points on the circle. If the measure of arc XY is 90 degrees, what is the length of chord XY?
The length of chord XY is 5√2.
What is the length of the chord?
It is described as the line segment that connects any two points on the circle's circumference without going through the circle's center. As a result, the diameter is the chord of a particular circle that is the longest and goes through its center. In mathematics, determining the chord's length can be crucial at times.
Here, we have
Given: A circle with center O and radius 5 has a central angle XOY. X and Y are points on the circle. If the measure of arc XY is 90 degrees.
We have to find the length of chord XY.
∠XOY = 90°
OX = OY = 5
We draw a perpendicular from the center to chord XY bisect XY at D.
Now, since OD bisects ∠XOY
∠XOD = ∠YOD = 90°/2 = 45°
Now, in ΔXOD
sin45° = XD/OX
1/√2 = XD/5
5/√2 = XD...(1)
In ΔYOD
sin45° = YD/OY
5/√2 = YD...(2)
Adding (1) and (2), we get
XD + YD = 5/√2 + 5/√2
XY = 5√2
Hence, the length of chord XY is 5√2.
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