Using the centers we know that the equation of the circle is (x+2)²+(y−3)² =40.
What is the equation of the circle?A circle is a two-dimensional, symmetrical figure in mathematics.
The circle's center is a place inside the circle from which all points on the circle's edge are equally far.
A circle's general equation is (x - h)² + (y - k)² = r², where (h, k) denotes the circle's center's location and r denotes the radius.
So, the equation of the circle form:
(x−h)² +(y−k)² =r²
The centers we have: (-2, 3)
(x+2)²+(y−3)²=r²
It passes through points (4, 5). Now:
(4+2)² +(5−3)²=r²
6²+2²=r²
r² =36+4
r² =40
Then, equation: (x+2)²+(y−3)² =40
Therefore, using the centers we know that the equation of the circle is (x+2)²+(y−3)² =40.
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Correct question:
Find the Equation of the circle whose center is (−2,3) which passes through the point (4,5).
Which are the coordinates of the vertex of F(x)=x^2-2x-3
Therefore , the solution of the given problem of coordinates comes out to be (1, -4) are the coordinates of the vertex of the function F(x) = x² - 2x - 3.
What does coordinate plane actually mean?When used in connection with particular other algebraic components on this place, such as Euclidean space, a parameter can reliably detect placement using a number of qualities or coordinates. Coordinates, which appear as collections of numbers when traversing in reflected space, can be utilised to identify particular places or things. Using the two y & x measurements, one can find something over both sides.
Here,
The formula x = -b/2a can be used to determine the vertex of a quadratic function with the form
F(x) = ax² + bx + c. A and B are equal in the given function
=> F(x) = x² - 2x - 3.
With these values entered into the formula, we obtain:
=> x = -b/2a x = -(-2)/(2*1)
=> x = 2/2 x = 1
Consequently, the vertex's x-coordinate is 1.
Now, we can enter the value of x into the following function, F(x), to determine the vertex's y-coordinate:
=> F(1) = 1² - 2(1) - 3
=> F(1) = 1 - 2 - 3
=> F(1) = -4
Therefore, the vertex's y-coordinate is -4.
As a result, (1, -4) are the coordinates of the vertex of the function
=> F(x) = x² - 2x - 3.
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what is the probability that at least one customer arrives at the shop during a one-minute interval? 0.736 0.368 0.632 0.264
Probability about at least one customer arrives at the shop while a one-minute interval is almost 0.632 or 63.2%.
How to calculate probability?The probability that at least one customer arrives at the shop during a one-minute interval can be calculated using the Poisson distribution, which is commonly used to model the arrival of events over a given time period.
Let's assume that the average number of customers arriving at the shop per minute is [tex]l[/tex]. Poisson probability mass function is;
[tex]P(X = k) = (e^{-l} * l^k) / k![/tex]
where X is the random variable representing the number of customers arriving in a one-minute interval, and k is the number of customers that arrive.
To find the probability of at least one customer arriving, we need to calculate the probability of X being greater than or equal to 1. That is,
[tex]P(X > = 1) = 1 - P(X = 0)[/tex]
When [tex]l[/tex] is relatively small, we can use approximation:
[tex]P(X = 0) = e^{-l[/tex]
Therefore,
[tex]P(X > = 1) = 1 - P(X = 0)[/tex]
[tex]≈ 1 - e^{-l[/tex]
We don't have the value of [tex]l[/tex], but assuming an average arrival rate of 1 customer per minute (i.e., [tex]l[/tex] = 1), we get:
[tex]P(X > = 1) = 1 - e^{-1[/tex]
≈ 0.632
Therefore, the probability about at least one customer arrives at the shop while a one-minute interval is almost 0.632 or 63.2%.
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Akira and Desmond order eggs for $4. 45, pancakes for $4. 05, and 2 mugs of cocoa for $1. 10 each. The tax is $0. 85. How much change should they get from $15. 00?
Answer:
$3.45
Step-by-step explanation:
Expand:3(×+2y)+4(2×-y)
Answer:
11x + 2y
Step-by-step explanation:
Expand the equation:
3(x + 2y) + 4(2x - y)
Multiply 3, by x & by 2y:
3(x + 2y) ===> 3x + 6y
Then, multiply 4, by 2x & by -y:
4(2x - y) ===> 8x - 4y
Finally, you add/subtract the two results from the parenthesis:
3x + 6y + 8x - 4y ===> 11x + 2y
Your final expanded result will be: 11x + 2y.
Please help, I’ve given up on trigonometry
Answer:
6.02
Step-by-step explanation:
sin 37=x/10
x/10=sin 37
x=10(sin 37)
x=6.02
Mrs. Hanson is filling containers in her bakery with flour. How much flour will fit into two of the containers?
The flour will fit into two of the container is 144 inches.
What is the volume of cuboids?
A cuboid is a six-sided solid known as a hexahedron. Quadrilaterals make up its faces. Cuboid is short for "like a cube". A cuboid is similar to a cube in that a cuboid can become a cube by varying the lengths of the edges or the angles between the faces.
Here, we have
Given: Mrs. Hanson is filling containers in her bakery with flour.
we have to find how much flour will fit into two of the containers.
Volume of cuboid = length × breadth × height
Length = 6 inches
Breadth = 3 inches
Height = 8 inches
The flour will fit into two of the containers = length × breadth × height
= 6 ×3 × 8
= 144 inches
Hence, The flour will fit into two of the container 144 inches.
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Given: AB = 12
AC = 6
Prove: C is the midpoint of AB.
A line has points A, C, B.
Proof:
We are given that AB = 12 and AC = 6. Applying the segment addition property, we get AC + CB = AB. Applying the substitution property, we get 6 + CB = 12. The subtraction property can be used to find CB = 6. The symmetric property shows that 6 = AC. Since CB = 6 and 6 = AC, AC = CB by the
property. So, AC ≅ CB by the definition of congruent segments. Finally, C is the midpoint of AB because it divides AB into two congruent segments.
9. A parenteral medication is to arrive through the mail. The label on the box states that the medication cannot be exposed to temperatures higher than 47. 8° C. The current outdoor temperature is 100. 2° F
The current outdoor temperature is 37.89°C, which is less than the highest temperature limit, i.e., 47.8°.
Both Celsius and Fahrenheit have different zero points and the temperature increments also vary quite differently. 100 degrees separate freezing and boiling on the Celsius scale, but for Fahrenheit the difference is 180 degrees. This means Celsius is 1.8 times larger than Fahrenheit.
To determine whether the medication has been exposed to temperatures higher than 47.8°C, we need to convert the outdoor temperature from Fahrenheit to Celsius. The conversion formula is:
°C = (°F - 32) x 5/9
Using this formula, we can get the temperature in Celsius form,
°C = (100.2 - 32) x 5/9
= 37.89°C
Since the outdoor temperature is lower than the maximum temperature the medication can be exposed to, it is safe to assume that the medication has not been exposed to temperatures higher than 47.8°C.
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Which sum is equivalent to 9c-12-15c-8-3c
The equivalent sum to the given equation is -9c - 20.
An algebraic expression is consists of variables, numbers with various mathematical operations.
Equivalent sums refers to addition or subtraction from the other number to maintain the same total value.
= 9c-12-15c-8-3c
To find the equivalent sum, first we can simplify this expression by first combining like terms:
= 9c - 15c - 3c - 12 - 8
= (9c - 15c - 3c) - (12 + 8) (grouping the like terms)
Solving the expression for terms c and for constant terms,
= -9c - 20
Therefore, the equivalent sum is -9c - 20.
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The box plots display measures from data collected when 20 people were asked about their wait time at a drive-thru restaurant window.
A horizontal line starting at 0, with tick marks every one-half unit up to 32. The line is labeled Wait Time In Minutes. The box extends from 10 to 14.5 on the number line. A line in the box is at 12.5. The lines outside the box end at 5 and 20. The graph is titled Fast Chicken.
A horizontal line starting at 0, with tick marks every one-half unit up to 32. The line is labeled Wait Time In Minutes. The box extends from 8.5 to 15.5 on the number line. A line in the box is at 12. The lines outside the box end at 3 and 27. The graph is titled Super Fast Food.
Which drive-thru typically has less wait time, and why?
Fast Chicken, because it has a smaller median
Fast Chicken, because it has a smaller mean
Super Fast Food, because it has a smaller median
Super Fast Food, because it has a smaller mean
The correct answer is: Fast Chicken, because it has a smaller median.
What is median?
Median is a measure of central tendency that represents the middle value in a dataset when the values are arranged in order of magnitude. To find the median, you need to arrange the values in order from smallest to largest and then find the middle value.
Based on the information provided, the drive-thru restaurant with less wait time is Fast Chicken, as it has a smaller median wait time of 12.5 minutes compared to the median wait time of 12 minutes for Super Fast Food. The mean wait time is not given, and even if it were, the median is a better measure of central tendency to compare in this scenario, as the box plots suggest some potential outliers.
Therefore, the correct answer is: Fast Chicken, because it has a smaller median.
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A rod of length L is placed along the X-axis between X=0 and x=L. The linear density (mass/length) rho of the rod varies with the distance x from the origin as rho=a+bx. (a) Find the SI units of a and b. (b) Find the mass of the rod in terms of a,b and L.
(a) The linear density (mass/length) rho has SI units of kg/m. Since rho = a + bx, the SI units of a must be kg/m and the SI units of b must be kg/m^2.
(b) To find the mass of the rod, we need to integrate the linear density function over the length of the rod:
m = ∫₀ᴸ ρ(x) dx
Substituting in ρ(x) = a + bx:
m = ∫₀ᴸ (a + bx) dx
m = [ax + (1/2)bx²] from 0 to L
m = aL + (1/2)bL²
Therefore, the mass of the rod in terms of a, b, and L is m = aL + (1/2)bL².
(a) In this problem, rho (ρ) represents linear density, which has units of mass per length. In SI units, mass is measured in kilograms (kg) and length in meters (m). Therefore, the units of linear density are kg/m. Since ρ = a + bx, the units of a and b must be consistent with this equation. The units of a are the same as those of ρ, so a has units of kg/m. For b, since it is multiplied by x (which has units of meters), b must have units of kg/m² to maintain consistency in the equation.
(b) To find the mass of the rod, we need to integrate the linear density function over the length of the rod (from x=0 to x=L). Let's set up the integral:
Mass (M) = ∫(a + bx) dx, with limits from 0 to L
Now, we can integrate:
M = [a * x + (b/2) * x²] evaluated from 0 to L
Substitute the limits:
M = a * L + (b/2) * L²
So, the mass of the rod in terms of a, b, and L is:
M = aL + (bL²)/2
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Which of the following choices describes the function?
an exponential function that is decreasing.
a quadratic function that is increasing then decreasing.
a quadratic function that is decreasing then increasing.
None of these choices are correct.
Answer: The function that is an exponential function that is decreasing is described as:
an exponential function that is decreasing.
A quadratic function that is increasing then decreasing would have a U-shaped graph, and a quadratic function that is decreasing then increasing would have an inverted U-shaped graph. However, neither of these options describes an exponential function that is decreasing.
Therefore, the correct choice is: an exponential function that is decreasing.
Step-by-step explanation:
what is the effect of the interaction of the number of pages and cover type on cost? (round your answers to four decimal places.)
To determine the effect of the interaction of the number of pages and cover type on cost, a statistical analysis would need to be performed using data on the number of pages, cover type, and cost. The analysis would likely involve running a regression model that includes both the number of pages and cover type as predictor variables, as well as an interaction term between the two.
To answer your question, the effect of the interaction between the number of pages and cover type on the cost can be determined through a step-by-step process:
1. Identify the base cost of each cover type (e.g., hardcover, paperback, etc.).
2. Determine the cost per additional page for each cover type.
3. Calculate the cost for a specific number of pages and cover type by adding the base cost and the cost of additional pages.
For example:
- Base cost for hardcover: $5.00
- Base cost for paperback: $3.00
- Cost per additional page for hardcover: $0.10
- Cost per additional page for paperback: $0.05
Now, let's say you want to find the cost of a 100-page hardcover book:
1. Start with the base cost of a hardcover: $5.00
2. Multiply the number of pages (100) by the cost per additional page for hardcover ($0.10): 100 * $0.10 = $10.00
3. Add the base cost and the cost of additional pages: $5.00 + $10.00 = $15.00
So, the cost of a 100-page hardcover book is $15.00.
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in table 9.1, the marginal cost of producing the seventh unit of output is equal to _____.
In table 9.1, the marginal cost of producing the seventh unit of output is equal to $8.
Marginal cost refers to the additional cost incurred when producing one more unit of output. To find the marginal cost of producing the seventh unit of output, follow these steps:
1. Locate the total cost column in table 9.1.
2. Identify the total cost of producing 6 units of output.
3. Identify the total cost of producing 7 units of output.
4. Subtract the total cost of producing 6 units from the total cost of producing 7 units.
The difference you get from step 4 is the marginal cost of producing the seventh unit of output.
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2. A small box in the shape of a cube for packaging has a volume of 216 cubic inches.
(a) For a medium box, the length, width, and height are all tripled. What is the ratio of the sides, area of the bases, and volumes of the boxes? Show your work.
(b) What is the volume of a medium box? Show your work.
(b) The volume of the medium box is 5832 cubic inches.
What is ratio?In mathematics, a ratio is a comparison of two quantities or numbers. It is expressed as the quotient of one number divided by another, and is often written as "a:b" or "a/b". Ratios are used to compare the sizes of two or more quantities, and they can be used to solve problems involving proportions and percentages.
For example, if a recipe calls for a ratio of 2 cups of flour to 1 cup of sugar, this means that for every 2 cups of flour used, 1 cup of sugar should be used as well. Similarly, if a company has a debt-to-equity ratio of 2:1, this means that for every $2 of debt, the company has $1 of equity.
(a) Let x be the length of the sides of the original box. Then the volume of the box is x^3 = 216, so x = 6.
When the length, width, and height are all tripled, the new side length of the medium box is 3x = 18.
The ratio of the sides of the medium box to the original box is 18:6, or simplified, 3:1.
The area of the base of the original box is. [tex]x^2 = 6^2 = 36[/tex]square inches.
The area of the base of the medium box is. [tex](3x)^2 = 18^2 = 324[/tex] square inches.
The ratio of the 5832 of the bases of the medium box to the original box is 324:36, or simplified, 9:1.
The volume of the medium box is. [tex](3x)^3 = 18^3 = 5832[/tex]cubic inches.
The ratio of the volumes of the medium box to the original box is 5832:216, or simplified, 27:1.
(b) The volume of the medium box is 5832 cubic inches.
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9) all of the following are required of a binomial distribution except: a) each trial has exactly two outcomes. b) the number of trials is fixed. c) all trials have the same probability of success. d) there must be at least 30 trials.
d) there must be at least 30 trials.
Find the perimeter of ΔNOP. Round your answer to nearest tenth if necessary. Figures are not necessarily drawn to scale ML = 5 MK = 4 KL = 7
ON = x NP = 6.4 OP = 8
The perimeter of ΔNOP is equal to 25.6 units.
What is the basic proportionality theorem?In Mathematics, the basic proportionality theorem states that when any of the two (2) sides of a triangle is intersected by a straight line which is parallel to the third (3rd) side of the triangle, then, the two (2) sides that are intersected would be divided proportionally and in the same ratio.
By applying the basic proportionality theorem to the given triangles, we have the following:
ΔNOP ≅ ΔKLM
OP/ML = x/KL
x = (OP × KL)/ML
x = (8 × 7)/5
x = ON = 11.2 units.
For the perimeter of ΔNOP, we have;
Perimeter of ΔNOP = OP + NP + ON
Perimeter of ΔNOP = 8 + 6.4 + 11.2
Perimeter of ΔNOP = 25.6 units.
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Jack draws a rainbow which is a parabola that has the equation y =-0. 1(x-1) 2+6, where x and y are measured in centimeters. If the height of the rainbow is 6 cm, how far away are the endpoints of the rainbow from one another?
The endpoints of the rainbow are 2√60 cm apart.
The given equation for the rainbow is in vertex form, which is y = a(x - h)^2 + k, where (h, k) is the vertex of the parabola.
In this case, the vertex is (1, 6), which means that the parabola is shifted horizontally by 1 unit to the right and vertically by 6 units upwards from the standard parabola y = ax^2.
Since the height of the rainbow is 6 cm, this means that the highest point of the parabola is at y = 6, which occurs at the vertex (1, 6).
To find the distance between the endpoints of the rainbow, we need to find the x-intercepts of the parabola. These occur where y = 0. Therefore, we need to solve for x in the equation:
0 = -0.1(x - 1)^2 + 6
-6 = -0.1(x - 1)^2
-6/-0.1 = (x - 1)^2
60 = (x - 1)^2
±√60 = x - 1
x = 1 ± √60
Since we are looking for the distance between the endpoints, we need to subtract the smaller x-value from the larger one:
Distance between endpoints = (1 + √60) - (1 - √60)
Distance between endpoints = 2√60
Therefore, the endpoints of the rainbow are 2√60 cm apart.
The given equation in the question is wrong, the correct equation is:
y = -0.1(x - 1)^2 + 6.
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A parallelogram has the following vertices, A(2,3), B(2,8), C(7,8), and D(7,3). What type of parallelogram is this?
This parallelogram is a rhombus.
Using the characteristics of parallelograms, we can establish what kind of parallelogram this is. In addition to having opposite sides that are parallel and congruent, parallelograms also have opposite angles that are congruent.
The distance formula can be used to get the length of each side of the parallelogram first.
A = 5, B = 5, C = 5, D = 5, etc.
As all the sides are identical in length, we know that this object is a rhombus.
The slopes of the lines comprising the opposing sides of the parallelogram can also be determined in a different way:
AB's slope is (8-3)/(2-2) = undefined.
CD's slope is (3-8)/(7-7) = undefined.
BC has a slope of 0 (8-8)/(7-2)
AD slope is equal to 0 (3-3)/(7-2)
The slopes of opposing sides can be seen to be both undefinable or zero, suggesting that they are parallel. Moreover, this is a rhombus because the opposing sides are the same length.
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Not sure how to go about tackling this question?
Should I try to get [tex]y= \frac{x(k+1)}{k-1}[/tex] into the form of the ratio first then simplify?
The proof for the given proportion or two equivalent ratios given as (y+x):(y-x) = k:1 is shown below
What is a proportion?
On ratio and fractions, proportion is based. Two ratios are equal when they are represented as a fraction (a/b), a ratio (a:b), and then a proportion. A and B are two integers. Two sets of supplied numbers are said to be directly proportional if they increase or decrease in the same ratio for both sets. The symbols "::" or "=" are used to indicate proportions. If the ratio between the first and second is equal to the ratio between the second and third, then any three quantities are in continuing proportion.
Given that (y+x) : (y-x) = k : 1
We know that product of extremes = product of means
Extremes=(y+x) and 1
Means=(y-x) and k
(y+x) . 1 = (y-x) . k
y + x = ky - kx
y - ky = -kx - x
y - ky = - x(k + 1)
-(y - ky) = x(k + 1)
ky - y = x(k + 1)
y(k - 1) = x(k + 1)
y=[tex]\frac{x(k+1)}{(k-1)}[/tex]
Hence proved.
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9. Find the sum of the expressions
(-4.25x + 9) and (8x - 2.2). Select all
of the statements that are true.
The coefficient of x is 3.75.
The coefficient of x is 4.75.
The constant is 11.2.
The constant is 6.8.
The sum is 3.75x + 6.8.
The sum is 4.75x + 11.2.
The sum of the expression is 3.5x+6.8.
Given that are two expressions, we need to find the sum of the expressions,
The expression is a mathematical statement which is constructed by putting arithmetical operations, variables and numbers together.
So, finding the sum.
(-4.25x + 9) and (8x - 2.2)
Putting the sign of addition,
= (-4.25x + 9) + (8x - 2.2)
Opening the brackets,
= -4.5x + 9 + 8x - 2.2
Combining the like terms.
= 8x-4.5x + 9-2.2
Operating the like terms,
= 3.5x+6.8
Hence, the sum of the expression is 3.5x+6.8.
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1. In a survey, it was found that the ratio of the people who liked modern songs and folk songs is 8:9, out of which 50 people like both songs, 40 liked folk songs only and 80 liked none of the songs.i) Represent the above information in a Venn - diagram. ii) How many people like folk song? iii) How many people like Modern song? iv) Find the number of people in the survey.
According to the information, the number of people who likes folk song is 90, and the number of people who likes modern song 80. So, the total number of people in the survey is 250.
How to calculate how many people like folk song?Let the number of people who like modern songs be 8x, and the number of people who like folk songs be 9x.
From the given information, we know that:
50 people like both modern and folk songs
40 people like only folk songs
The total number of people who like at least one type of song is (8 + 9)x - 50 = 17x - 50
80 people like none of the songs
Therefore, we can write the following equation:
(8x + 9x) - 50 - 40 + 80 = 17x
Simplifying this equation, we get:
17x - 10 = 17x
Thus, x = 10.
So, the number of people who like folk songs is 9x = 9(10) = 90.
How to calculate how many people like modern song?Similarly, the number of people who like modern songs is 8x = 8(10) = 80.
How to calculate the number of people in the survey?The total number of people in the survey is the sum of the number of people who like modern songs, the number of people who like folk songs, and the number of people who like none of the songs.
So, the total number of people in the survey is:
80 + 90 + 80 = 250.
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an analysis of future events performed by the probability of those events and the potential outcomes is called
An analysis of future events performed by the probability of those events and the potential outcomes is called probabilistic analysis.
Probabilistic analysis involves using mathematical models and statistical techniques to estimate the likelihood of different outcomes, given a set of assumptions and inputs. It is commonly used in risk management, financial analysis, and project management to evaluate the potential impact of different scenarios and make informed decisions. By quantifying the probabilities of different outcomes, probabilistic analysis helps decision-makers identify the best course of action and manage uncertainty and risk.
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‼️WILL MARK BRAINLIEST‼️
Part A:
The correct answers are:
The data set is numerical data
The data in this set can be quantified in the form of numbers.
The set has an outlier
An outlier is an extreme value that differs from the rest of the set. The outlier in this set is 5.
A box plot is an appropriate data display for this data
A box plot is great for showing distribution of data. A circle chart would not be good for this set because circle charts are better for part-to-whole data.
Part B:
A: Students in his class have between 5 to 950 photos stored on their cell phones.
The text at the top explains that this data was gathered from students in Shamar's class, and the data ranges from 5 to 950.
KKIC
8. The area of a circle can be found using the formula A = (pi)r^2. Find the area of the circle with a radius of 3xy^3.
The area of circle is with radius 3xy³ is 9πx²y⁶.
What is area?Area of a circle is the region occupied by the circle in a two-dimensional plane. It can be determined easily using a formula, A = πr2.
Define radius of a circle?Radius of a circle is the distance from the center of the circle to any point on it's circumference. It is usually denoted by 'R' or 'r'.This quantity has importance in almost all circle-related formulas. The area and circumference of a circle are also measured in terms of radius. Circumference of circle = 2π (Radius)
area of circle=πr²
=π×(3xy³)²
=9πx²y⁶
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What is the solution to 9/x+81 > 45?
Answer:
I dont know the answer to be honest..
JUST KIDDING.. ill answer this step by step lol
To solve the inequality 9/x + 81 > 45, we can follow these steps:
Step 1: Subtract 81 from both sides of the inequality to isolate the fraction on the left-hand side:
9/x + 81 - 81 > 45 - 81
9/x > -36
Step 2: Take the reciprocal of both sides of the inequality to eliminate the fraction:
1 / (9/x) < 1 / (-36)
x/9 < -1/36
Step 3: Multiply both sides of the inequality by 9 to get rid of the fraction in the numerator:
9 * (x/9) < 9 * (-1/36)
x < -1/4
So, the solution to the inequality 9/x + 81 > 45 is x < -1/4. This means that x must be less than -1/4 for the inequality to be true.
in an analysis testing differences between an experimental and a control group on the dependent variable, a p-value of 0.07 means there is a
A control group on the dependent variable, P-value is higher than the usual cutoff of 0.05 for rejecting the null hypothesis that there is no difference between the groups, this is frequently regarded as evidence that the difference between the groups is not statistically significant.
In an analysis testing difference between an experimental and a control group on the dependent variable, a p-value of 0.07 means that there is a 7% chance of obtaining a difference as large or larger than the observed difference between the two groups, assuming that there is no true difference between the groups in the population.
Interpreted as evidence that the difference between the groups is not statistically significant, since the p-value is greater than the conventional threshold of 0.05 for rejecting the null hypothesis of no difference between the groups.
Statistical significance does not necessarily imply practical significance, and there may still be a meaningful difference between the groups that is not detected by the statistical test.
Additionally, the interpretation of a p-value depends on the study design, sample size, and other factors, and should be considered in conjunction with other information about the study.
True difference between the groups in the population, a p-value of 0.07 indicates that there is a 7% chance of finding a difference as large or larger than the observed difference between the two groups in an analysis testing the difference between an experimental and a control group on the dependent variable.
P-value is higher than the usual cutoff of 0.05 for rejecting the null hypothesis that there is no difference between the groups, this is frequently regarded as evidence that the difference between the groups is not statistically significant.
It's crucial to remember that statistical significance does not always imply practical relevance.
There could still be a significant difference between the groups that is not shown by statistical analysis.
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an urn contains 14 balls, seven of which are red. the selection of a red ball is desired and is therefore considered to be a success. if a person draws three balls from the urn, what is the probability of two successes?
We get a probability of 3/8 or 0.375.
How to find the probability of two successes?To find the probability of two successes (i.e., drawing two red balls) out of three draws from an urn containing 14 balls (7 of which are red), we can use the binomial probability formula:
[tex]P(X = 2) = (n\ choose\ x) * p^x * (1-p)^{(n-x)[/tex]
where
n is the total number of draws (3 in this case),
x is the number of successes (2 in this case),
p is the probability of a success on any given draw (7/14 or 1/2 in this case),
and (n choose x) is the number of ways to choose x items out of n items.
Plugging in the values, we get:
[tex]P(X = 2) = (3\ choose\ 2) * (1/2)^2 * (1/2)^{(3-2)} = 3/8[/tex]
Therefore, the probability of getting two red balls out of three draws is 3/8 or 0.375.
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Write an expression in terms of m and p that represents tan(R).
Answer: tan(R) = m/p
Step-by-step explanation: In the right triangle shown in the diagram, we know that the tangent of angle R is equal to the length of the opposite side (m) divided by the length of the adjacent side (p).
Therefore, an expression in terms of m and p that represents tan(R) would be tan(R) = m/p
Can someone help me asap? It’s due tomorrow.
Answer:
it A or B
Step-by-step explanation:
the other two C and D dont make sense to what the question is asking