to get the equation of any straight line, we simply need two points off of it, let's use those two in the picture below
[tex](\stackrel{x_1}{2}~,~\stackrel{y_1}{5})\qquad (\stackrel{x_2}{4}~,~\stackrel{y_2}{7}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{\textit{\large rise}} {\stackrel{y_2}{7}-\stackrel{y1}{5}}}{\underset{\textit{\large run}} {\underset{x_2}{4}-\underset{x_1}{2}}} \implies \cfrac{ 2 }{ 2 } \implies 1[/tex]
[tex]\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{5}=\stackrel{m}{ 1}(x-\stackrel{x_1}{2}) \\\\\\ y-5=x-2\implies {\Large \begin{array}{llll} y=x+3 \end{array}}[/tex]
a number decreased by 16 is -26. Find the number number
The value of the required number is - 10
Finding the unknown number:To find the unknown number represent the number with a variable 'x' and form a linear equation according to the condition given in the problem.
Solve the resultant equation for the value variable 'x' by adding or subtracting the same number on both sides.
Here we have
A number decreased by 16 and the result was -26.
Let 'x' be the number
According to the given data,
=> x - 16 = - 26
Add 16 on both sides
=> x - 16 + 16 = - 26 + 16
=> x = - 10
Hence,
The value of the required number is - 10
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Which of the following is not an attribute of a right pyramid?
Triangular faces
Triangular base
1 apex
8 edges
Answer:
Triangular base
Step-by-step explanation:
It possesses all attributes except from triangular base
In 2022, a customer buys 5 GE 10% debentures, M '41. The interest payment dates are Feb 1st and Aug 1st. The current yield on the bonds is 11. 76%. The bonds are callable as of 2032 at 103. The bond is trading:
The current yield of the bond is 11.76% and the yield to call is 19.51%.
The current yield of the bond can be calculated using the following formula:
Current Yield = (Annual Interest Payment/Bond Price) * 100
In this case, the annual interest payment is 10% of the face value of the bond (5 * $100 = $500). The bond price is $41, so the current yield is 11.76%:
Current Yield = ($500/$41)*100 = 11.76%.
The bond is callable at 103 as of 2032, so the call premium is 103 – 41 = 62. This means that if the bond is called, the investor will receive an additional payment of $62 per bond (5 * $62 = $310). The yield to call is the total annual return the investor will receive if the bond is called:
Yield to Call = (Annual Interest Payment + Call Premium)/Bond Price * 100
In this case, the yield to call is:
Yield to Call = ($500 + $310)/$41 * 100 = 19.51%.
This means that if the bond is called in 10 years, the investor will receive an annual return of 19.51%.
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The length of the smallest side (or leg) of a right triangle is 18. The lengths of the
other two sides are consecutive even integers. Use the Pythagorean theorem to solve
tor the smaller of the two missing sides (the second leg).
Length οf the smaller οf the twο missing sides (the secοnd leg) is 80
What is Pythagοrean theοrem?In mathematics, the Pythagοrean theοrem οr Pythagοras' theοrem is a fundamental relatiοn in Euclidean geοmetry between the three sides οf a right triangle. It states that the area οf the square whοse side is the hypοtenuse (the side οppοsite the right angle) is equal tο the sum οf the areas οf the squares οn the οther twο sides.
Let x be the length οf the smaller οf the twο missing sides (the secοnd leg). Then the length οf the larger missing side (the hypοtenuse) is (x + 2), since the twο sides are cοnsecutive even integers.
By the Pythagοrean theοrem, we have:
[tex]18^2 + x^2 = (x + 2)^2[/tex]
Simplifying and expanding the right side, we get:
[tex]324 + x^2 = x^2 + 4x + 4[/tex]
Subtracting x^2 frοm bοth sides, we get:
324 = 4x + 4
Subtracting 4 frοm bοth sides, we get:
320 = 4x
Dividing bοth sides by 4, we get:
x = 80
Therefοre, the length οf the smaller οf the twο missing sides (the secοnd leg) is 80.
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This composite figure is created by placing a sector of a circle on a triangle. What is the area of this
composite figure? Use 3.14 for . Round to the nearest hundredth. Show your work
As a result, the answer to the following question, When we round to the area nearest hundredth, we get: 42.84 square units in total.
What is area?An area is the size of a surface area. The surface area refers to the area of an open surface or the border of a three-dimensional object, whereas the area of a planar region or planar region refers to the area of a form or flat layer. The area of an item is the entire amount of space occupied by its planar (2-D) surface or form. Using a pencil, draw a square on a sheet of paper. A two-dimensional character. The area of a form on paper is the amount of space it occupies. Assume that the square is made up of smaller unit squares.
The formula for a sector's area is:
Sector area = (central angle/360) x pi x radius2
When we plug in the values we know, we get:
Sector area = (60/360) x 3.14 x 62
Sector area = 18.84 square units
Triangle area = (base x height)/2
When we plug in the values we know, we get:
Triangle area = (8 x 6)/2 Triangle area = 24 square units
Total area Equals sector area + triangle area
18.84 + 24 = total area
42.84 square units in total
When we round to the nearest hundredth, we get:
42.84 square units in total.
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At a local car dealership a particular salesperson sells an average of 3. 1 cars per week with a standard
deviation of 1. 1 cars. The dealership pays her $300 a week plus a commission of $250 for each car that
she sells. What are the mean and standard deviation, respectively, of her total weekly pay? PLs help
The standard deviation of her total weekly pay is approximately $262.25 and the mean is $1075
Let X be the number of cars the salesperson sells in a week. Then, X follows a normal distribution with mean μ = 3.1 and standard deviation σ = 1.1.
The total weekly pay Y is given by the equation:
Y = $300 + $250X
Using the properties of means and variances of linear combinations of random variables, we can find the mean and standard deviation of Y as follows:
Mean of Y:
E(Y) = E($300 + $250X) = $300 + $250E(X) = $300 + $250(3.1) = $1075
Therefore, the mean of her total weekly pay is $1075.
Standard deviation of Y:
Var(Y) = Var($250X) = $250^2Var(X) = $250^2(1.1^2) = $68,750
Since the standard deviation is the square root of the variance, we have:
SD(Y) = sqrt($68,750) ≈ $262.25
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(find the slope of each line)
help—
Fill in the table so that every row and every column sums to zero.
Answer:
Step-by-step explanation:
wheres the table
The figure below is made of 2 22 rectangular prisms. What is the volume of this figure? A shape made up of two rectangular prisms. The first rectangular prism has a base that measures 5 inches length by 7 inches width, and has a height of 1 inch. The second rectangular prism sits next to the first rectangular prism. It has a base that measures 9 inches length by 7 inches width and has a height of 4 inches.
Answer: The volume of a rectangular prism is given by the formula V = lwh, where l, w, and h are the length, width, and height, respectively.
For the first rectangular prism, we have:
V1 = 5 x 7 x 1 = 35 cubic inches
For the second rectangular prism, we have:
V2 = 9 x 7 x 4 = 252 cubic inches
To find the total volume of the figure, we add the volumes of the two rectangular prisms:
V = V1 + V2 = 35 + 252 = 287 cubic inches
Therefore, the volume of the figure is 287 cubic inches.
Step-by-step explanation:
A movie production company was interested in the relationship between a movie's budget and how well that movie
was received by the public. Information was collected on several movies and was used to obtain the regression
equation ý = 0.145x + 0.136, where x represents the budget of the movie (in millions of dollars) and ŷ is the predicted
score of that movie (in points from 0 to 1). Which statement best describes the meaning of the slope of the regression
line?
O For each increase in score by 1 point, the predicted budget increases by $0.136 million.
For each increase in score by 1 point, the predicted budget increases by $0.145 million.
O For each increase in budget by $1 million, the predicted score increases by 0.136 points.
O For each increase in budget by $1 million, the predicted score increases by 0.145 points.
Answer: For each increase in budget by $1 million, the predicted score increases by 0.145 points.
a survey of 400 college seniors resulted in the following crosstabulation regarding their undergraduate major and whether or not they plan to go to graduate school. undergraduate major graduate school business engineering other total yes 35 44 64 143 no 92 101 64 257 total 127 145 128 400 what percentage of the students' undergraduate major is engineering?
The percentage of college seniors' undergraduate major that is engineering is 36.25%.
To calculate the percentage of college seniors' undergraduate major that is engineering, we need to find the proportion of students who majored in engineering out of the total number of students surveyed.
We see that out of the 400 college seniors surveyed, 145 majored in engineering. Therefore, the proportion of students who majored in engineering is 145/400. To convert this proportion to a percentage, we multiply it by 100. So, (145/400) x 100 = 36.25%.
Therefore, 36.25% of the college seniors surveyed had an undergraduate major in engineering.
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A study investigated if cell phone use impacted student drivers' reaction times. There were two groups: 27 students were assigned to the cell phone group while 27 students were assigned to the control group. The experiment measured the response time to traffic lights; for the cell phone group, the mean was 585. 3 with a standard deviation of 85. 2 and for the control group, the mean was 537. 9 with a standard deviation of 66. 3. Construct a 90% confidence interval for the difference in mean response times between the cell phone and control groups
The 90% confidence interval for the difference in mean response times between the cell phone and control group is given as follows:
(12.6, 82.2).
How to construct the confidence interval?The estimate of the differences is given as follows:
585.3 - 537.9 = 47.4.
The standard error for the distribution of each sample is given as follows:
Cell phone group: 85.2/sqrt(27) = 16.4.Control group: 66.3/sqrt(27) = 12.8.Hence the standard error for the distribution of differences is given as follows:
sqrt(16.4² + 12.8²) = 20.8.
The critical value, using a t-distribution calculator, for a two-tailed 90% confidence interval, with 27 + 27 - 2 = 52 df, is t = 1.6747.
The lower bound of the interval is given as follows:
47.4 - 1.6747 x 20.8 = 12.6.
The upper bound of the interval is of:
47.4 + 1.6747 x 20.8 = 82.2.
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Consider the expression . Which of the following is an equivalent expression ?
Answer:
4 th option bcoz [tex]x^{y+2}=x^{y}x^{2[/tex]
A certain radioactive material is decaying at a rate proportional to the amount present. If a sample of 50 grams of the material was present initially and after 2 hours the sample lost 10% of its mass, find: An expression for the mass of the material remaining at any time t. The mass of the material after 4 hours. The half-life of the material.
The Half-Life of the material is 13.86 hours. The mass of the material remaining at any time t can be expressed as:
M(t) = 50e^(-0.05t), where t is measured in hours.
The amount of time needed for a number (of material) to decrease to half of its original value is known as the half-life (symbol t12). In nuclear physics, the phrase is frequently used to indicate how rapidly unstable atoms decay radioactively or how long steady atoms last.
The mass of the material after 4 hours is M(4) = 50e^(-0.2) ≈ 31.4 grams. The half-life of the material can be found by solving for when M(t) = 25 grams:
t = ln(2)/0.05 ≈ 13.86 hours.
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The following data represent a random sample of the number of shares of a pharmaceutical company's stock traded for 20 days in 2000. Use a normal probability plot to asses whether the sample data could have come from a population that is normally distributed. Start 4 By 5 Matrix 1st Row 1st Column 4. 78 2nd Column 9. 7 3rd Column 11. 2 4st Column 8. 32 5st Column 14. 64 2nd Row 1st Column 6. 09 2nd Column 10. 49 3rd Column 9. 74 4st Column 12. 9 5st Column 14. 05 3rd Row 1st Column 5. 04 2nd Column 9. 34 3rd Column 12. 39 4st Column 7. 55 5st Column 28. 34 4st Row 1st Column 8. 51 2nd Column 10. 94 3rd Column 5. 08 4st Column 8. 04 5st Column 11. 68 EndMatrix 4. 78 9. 7 11. 2 8. 32 14. 64 6. 09 10. 49 9. 74 12. 9 14. 05 05. 04 09. 34 12. 39 7. 55 28. 34 8. 51 10. 94 5. 08 08. 04 11. 68
we can tentatively conclude that the data is reasonably well-approximated by a normal distribution, but further analysis may be needed to confirm this conclusion.
To create a normal probability plot, we need to first sort the data in ascending order and then calculate the corresponding z-scores for each observation based on the normal distribution. We can then plot the observed z-scores against the expected z-scores on a normal distribution.
Here is the sorted data:
5.04 5.08 6.09 7.55 8.04 8.32 8.51 9.34 9.7 9.74
10.49 10.94 11.2 11.68 12.39 12.9 14.05 14.64 28.34
And here are the corresponding z-scores calculated based on the normal distribution:
diff
-1.77 -1.74 -1.53 -1.17 -1.04 -0.96 -0.90 -0.72 -0.67 -0.65
-0.41 -0.29 -0.24 -0.17 0.06 0.21 0.48 0.65 3.09
The plot appears to be fairly linear, which suggests that the data could have come from a population that is normally distributed. However, there are a few points that deviate slightly from the line, particularly the two extreme points on the right-hand side. This suggests that there may be some skewness or outliers in the data that are causing deviations from normality.
Overall, we can tentatively conclude that the data is reasonably well-approximated by a normal distribution, but further analysis may be needed to confirm this conclusion.
the complete question is :
"The following data represent a random sample of the number of shares of a pharmaceutical company's stock traded for 20 days in 2000. Use a normal probability plot to assess whether the sample data could have come from a population that is normally distributed.
4.78 9.7 11.2 8.32 14.64
6.09 10.49 9.74 12.9 14.05
5.04 9.34 12.39 7.55 28.34
8.51 10.94 5.08 8.04 11.68
Please create a normal probability plot and interpret your findings."
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Studies are often done by pharmaceutical companies to determine the effectiveness of a treatment program. Suppose that a new AIDS antibody drug is currently under study. It is given to patients once the AIDS symptoms have revealed themselves. Of interest is the average (mean) length of time in months patients live once starting the treatment. Two researchers each follow a different set of 40 AIDS patients from the start of treatment until their deaths. The following data (in months) are collected. Researcher A: 3; 4; 10; 24; 16; 17; 22; 44; 37; 16; 14; 19; 25; 26; 26; 27; 33; 29; 35; 44; 13; 21; 22; 10; 12; 8; 40; 32; 26; 27; 31; 34; 29; 17; 25; 24; 29; 47; 33; 34 Researcher B: 3; 14; 22; 4; 16; 17; 28; 41; 31; 18; 14; 14; 26; 25; 21; 22; 31; 6; 35; 44; 23; 21; 21; 16; 8; 18; 41; 22; 16; 25; 33; 34; 29; 13; 18; 24; 23; 42; 33; 29 a. Complete the tables using the data provided:
By answering the above question, we may state that expressions Researcher A: Value Frequency 3 2 4 1
what is expression ?In mathematics, you can multiply, divide, add, or take away. The following is how an expression is put together: Numeric value, expression, and math operator The elements of a mathematical expression include numbers, parameters, and functions. It is feasible to use contrasting words and expressions. Any mathematical statement containing variables, numbers, and a mathematical action between them is known as an expression, often known as an algebraic expression. As an example, the expression 4m + 5 is composed of the expressions 4m and 5, as well as the variable m from the above equation, which are all separated by the mathematical symbol +.
Researcher A:
Value Frequency
3 2
4 1
8 1
10 2
12 1
13 1
14 2
16 2
17 2
19 1
21 1
22 2
24 2
25 2
26 2
27 2
29 3
31 2
32 1
33 2
34 2
35 1
37 1
40 1
44 2
47 1
Researcher B:
Value Frequency
3 2
4 1
6 1
8 2
13 1
14 3
16 2
17 1
18 2
21 3
22 2
23 2
24 2
25 2
26 1
28 1
29 2
31 2
33 2
34 1
35 1
41 2
42 1
44 1
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For a measurement project in math class, students measured the lengths of their pinky fingers. Alex's measured 2 inches long. Jerimiah's pinky finger was (7)/(4) inches long. Whose finger is longer? Draw a number line to help prove your answer.
Jerimiah's finger is longer. A number line can be drawn from 0 to 8 inches with 2 inches marked for Alex's finger and 7/4 inches marked for Jerimiah's finger. Since 7/4 is greater than 2, Jerimiah's finger is longer.
To prove that Jerimiah's finger is longer than Alex's, we can use a number line. On this number line, we start with 0 inches at one end and 8 inches at the other. We mark 2 inches for Alex's finger and 7/4 inches for Jerimiah's finger. Since 7/4 inches is greater than 2 inches, Jerimiah's finger is longer than Alex's. To further prove this, we can convert the fraction 7/4 into a decimal. 7/4 = 1.75, which is greater than 2. Therefore, Jerimiah's finger is longer than Alex's.
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solve the quadratics attached using at least two different methods (factoring, completing the square or the quadratic formula)
[tex]m^2+7m+10\\\\n^2\:+9n+18\\\\\\p^2-6p+8[/tex]
Method 1: Factoring
m^2 + 7m + 10
We need to find two numbers that multiply to 10 and add up to 7. These numbers are 2 and 5.
m^2 + 2m + 5m + 10
(m + 2)(m + 5)
n^2 + 9n + 18
We need to find two numbers that multiply to 18 and add up to 9. These numbers are 3 and 6.
n^2 + 3n + 6n + 18
(n + 3)(n + 6)
p^2 - 6p + 8
We need to find two numbers that multiply to 8 and add up to -6. There are no such numbers, so we cannot factor this quadratic.
Method 2: Quadratic Formula
m^2 + 7m + 10
a = 1, b = 7, c = 10
m = (-b ± sqrt(b^2 - 4ac)) / 2a
m = (-7 ± sqrt(7^2 - 4(1)(10))) / 2(1)
m = (-7 ± sqrt(9)) / 2
m = -5 or -2
n^2 + 9n + 18
a = 1, b = 9, c = 18
n = (-b ± sqrt(b^2 - 4ac)) / 2a
n = (-9 ± sqrt(9^2 - 4(1)(18))) / 2(1)
n = (-9 ± sqrt(9)) / 2
n = -3 or -6
p^2 - 6p + 8
a = 1, b = -6, c = 8
p = (-b ± sqrt(b^2 - 4ac)) / 2a
p = (6 ± sqrt(6^2 - 4(1)(8))) / 2(1)
p = (6 ± sqrt(16)) / 2
p = 2 or 4
Therefore, the solutions to the quadratics are:
m^2 + 7m + 10 = (m + 2)(m + 5) or m = -5 or -2
n^2 + 9n + 18 = (n + 3)(n + 6) or n = -3 or -6
p^2 - 6p + 8 = (p - 2)(p - 4) or p = 2 or 4
benny makes $20 an hour babysiting. he can make 35% more per hour if he babysits an extra kid what could his new hourly wage be.
Answer:
If Benny makes $20 an hour babysitting, his 35% increase would be:
35% of $20 = 0.35 x $20 = $7
This means that Benny could make an extra $7 per hour if he babysits an extra kid. Therefore, his new hourly wage would be:
$20 + $7 = $27
So, if Benny babysits an extra kid, he could make $27 per hour.
Step-by-step explanation:
Jake built a skateboard ramp, if the distance of the ramp is 10 ft. The ramp rises a
total of 3. 5ft. What angle does the ramp make with the ground? Round to the
nearest degree.
As per the given distance, the angle that is made by the ramp with the ground is 19.1 degrees
Let's call the angle we're trying to find theta (θ). We can use the tangent function to calculate θ, as follows:
tan(θ) = opposite / adjacent
We know the opposite side (height of the ramp) is 3.5ft, and the adjacent side (distance along the ground) is 10ft. Plugging these values into the tangent equation, we get:
tan(θ) = 3.5 / 10
We can solve for θ by taking the inverse tangent (also known as arctan) of both sides:
θ = arctan(3.5 / 10)
Using a calculator, we find that θ is approximately 19.1 degrees. Therefore, the ramp makes an angle of 19.1 degrees with the ground.
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1. Calculate the mean for each sample.
Sample #
1
234
2
3
5
6
7
8
9
O ACCESS Virtual Learning 2022
Sample Items
(1, 1, 2, 0)
(2, 2, 0, 1)
(1, 1, 1, 2)
(2,0, 1, 0)
(2, 2, 0, 1)
(1, 1, 2, 3)
(3, 2, 0, 0)
(1, 1, 1, 1)
(3, 1, 1, 1)
x
Step-by-step explanation:
1. Calculate the mean for each sample.
Sample #
1
234
2
3
5
6
7
8
9
O ACCESS Virtual Learning 2022
Sample Items
(1, 1, 2, 0)
(2, 2, 0, 1)
(1, 1, 1, 2)
(2,0, 1, 0)
(2, 2, 0, 1)
(1, 1, 2, 3)
(3, 2, 0, 0)
(1, 1, 1, 1)
(3, 1, 1, 1)
x
Calcular el área bajo la curva de la función x^3-5x^2+2x+8 en el intervalo (1,5)
The area under the curve of the given function from x=1 to x=5 is -64.17.
The area under a curve is the area between the curve and the x-axis in a certain range. To calculate the area under a curve, we will use the definite integral of the function. The definite integral of a function f(x) from x=a to x=b is defined as
[tex]∫baf(x)dx[/tex]
For the given function f(x) = x^3 - 5x^2 + 2x + 8, the definite integral from x=1 to x=5 is
[tex]∫51(x^3 - 5x^2 + 2x + 8)dx = [x^4/4 - 5x^3/3 + x^2 - 8x]5[/tex]
Substituting x=1 and x=5 gives
[54 - 5(125)/3 + 25 - 8(5)] = -64.17
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can anyone help me please
The interval of the expression x ≤ 3 and x ≥ -3 is (-3, 3).
How to graph equations?To graph a linear equation with one variable, first solve the problem, then find the answer on the axis (number line), and place a point there. We have seen that graphs often provide information that the original equation would not have shown. The graphs of one-variable linear equations do not provide much, if any, information, but they provide as a basis for graphs with greater dimensions.
The given inequality is x ≤ 3 and x ≥ -3.
Since, the signs are less than and equal to and more than and equal to we use solid dots to represent the number 3 and -3 on the number line.
Also, the expression requires all the numbers between 3 and -3. Thus, the interval is:
(-3, 3).
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Liam is making a stone walkway. The rectangular walkway is 6 feet wide and 24 feet long. Each stone measures 2 feet by 2 feet and covers an area of 4 square feet.
What is the area, in square feet, of the walkway?
How many stones will Liam need to make the walkway?
Show your work.
The rectangular sidewalk for Liam to build the pathway, [tex]36[/tex] stones are required.
What is a rectangle shape?The rectangular shape in two dimensions has four aspects, four corners, & four sharp angles (90°). Equal and equal opposing sides make form a rectangle. As a two-dimensional form, the rectangles comprises length and breadth just like its 2 components.
What about a square?Because a square is indeed a parallelogram with all specific corners at right angles, every square is also a rectangle. To be a square, a rectangle's sides must all have the same length, hence not all rectangles are squares.
Area of the walkway [tex]=length * width[/tex]
[tex]24*6=144[/tex] square feet
Area of each stone [tex]= length of each side * width of each side[/tex]
[tex]=2ft*2ft=4[/tex] square feet
Number of stones needed [tex]=\frac{Area of walkway }{Area of each stone}[/tex]
Number of stones needed [tex]=\frac{144}{4}=36[/tex] stones
Therefore, Liam will need [tex]36[/tex] stones to make the walkway.
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A DVD club charges nonmembers $20. 50 to purchase a DVD. With a $25 one-time membership fee, members pay $18 per DVD. For what number of DVDs is the cost the same for members and nonmembers on the first purchase? Write an equation that models the situation. Let d represent the number of DVDs. Solve the equation. For what number of DVDs is the cost the same for members and nonmembers’ first purchase from the DVD club?
A DVD club charges nonmembers $20. 50 to purchase a DVD. Members pay $18 per DVD for a one-time membership cost of $25. The cost is the same for members and nonmembers on the first purchase is 10.
Let's call the number of DVDs "d". For non-members, the cost of purchasing d DVDs is:
Cost for non-members = 20.50d
For members, the cost of purchasing d DVDs is:
Cost for members = 25 + 18d
We want to find the value of d for which the cost is the same for members and non-members. In other words, we want to find the value of d that satisfies the equation:
20.50d = 25 + 18d
To solve for d, we can start by subtracting 18d from both sides of the equation:
2.50d = 25
Then, we can divide both sides by 2.50:
d = 10
Therefore, the cost will be the same for members and non-members on the first purchase if the number of DVDs purchased is 10.
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two step equations -6+x/4=-5
Answer:
x = 4
Step-by-step explanation:
- 6 + [tex]\frac{x}{4}[/tex] = - 5 ( add 6 to both sides )
[tex]\frac{x}{4}[/tex] = 1 ( multiply both sides by 4 to clear the function )
x = 4
The following graph represent the cost of Nolan's
retirement party :
a.
Complete the following table that represent the cost of Nolan's
party
Guests :x
Cost :y
10
20
b.
Find the unit rate.
c. Write the relation between x and y
30
$100
$90
500
$70
$60
$40
$30
$20
$10
0
Cost of Nolan's retirement party
10 20 30 40 50 60 70 80 90 100
Guests
Answer:
See below.
Step-by-step explanation:
Please check the assumptions. I did not see a graph, so made assumptions in the calculations,
Given that for 10 guests, the total cost is $20, we can calculate a rate of $2/guest ( the unit rate). This seems too inexpensive, even for a hot dog and soft drink. But going on that, we can establish the relationship between x (the number of guests) and y (the total cost) as y = ($2/guest)*x.
The list of numbers does not provide a clear undertanding of what is being requested, The attached spreadheet calculates a number of guest options based on a rate of $2/guest. The area in green are the second list of values based on the numbers of guests.
Hind a formula that expresses the fact thet f(x,y) is a distance 8 from the origin.
The formula that expresses the fact that f(x, y) is a distance 8 from the origin can be found using the distance formula for two points on the coordinate plane, (0, 0) and (x, y).
The distance formula is given by d = √(x2−x1)2+(y2−y1)2where (x1, y1) = (0, 0) and d = 8. Thus, we have8 = √(x2−0)2+(y2−0)2Squaring both sides gives8^2 = (x2−0)2+(y2−0)2which simplifies to64 = x2+y2
Therefore, the formula that expresses the fact that f(x, y) is a distance 8 from the origin isx2+y2= 64.
For further information on Coordinate plane, refer below:
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Diego applied to x colleges. If Nikki applied to 3 times as many colleges as Diego did, how many colleges did Nikki apply to?
3
x + 3
3x
3x + 3
Nikki applied to 3x colleges.
To determine the number of colleges Nikki applied to, we need to multiply the number of colleges Diego applied to by 3. Hence, the answer is represented by the mathematical expression 3x.
Explanation:In this problem, 'x' represents the number of colleges Diego applied to. Nikki, on the other hand, applied to 3 times as many colleges as Diego did.
So, to find out the total number of colleges Nikki applied to, we multiply the number of colleges Diego applied to ('x') by 3.
Hence, the correct mathematical expression for the number of colleges Nikki applied to would be 3x.
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Help PLEASE( HELP WITH BOTH)
Check the picture below.
[tex]\textit{Law of sines} \\\\ \cfrac{\sin(\measuredangle A)}{a}=\cfrac{\sin(\measuredangle B)}{b}=\cfrac{\sin(\measuredangle C)}{c} \\\\[-0.35em] ~\dotfill\\\\ \cfrac{39}{\sin(53^o)}=\cfrac{JN}{\sin(65^o)}\implies \cfrac{39\sin(65^o)}{\sin(53^o)}=JN\implies 44.3\approx JN \\\\\\ \cfrac{39}{\sin(53^o)}=\cfrac{JS}{\sin(62^o)}\implies \cfrac{39\sin(62^o)}{\sin(53^o)}=JS\implies 43.1\approx JS[/tex]
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