The red line is a reflection across the x-axis, so the correct option is d.
How to write the equation for the red line?
First, we know that the black line is represented by y = f(x). Here, we can see that the red line is given by a reflection around the x-axis.
This reflection only changes the sign of the right side, then we get that the function of the red line is:
g(x) = -f(x)
Then we can write this as:
y = g(x) = -f(x) = -1*f(x)
If we divide both sides by -1, we get:
y/(-1) = f(x)
Like in option d, so that is the correct one.
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How to make this question..?
Please answer fast, it's important... Q) find the volume of cube whose dimensions are (x+7y), (7x-y) and (xy-5).
Answer:
\(Volume = 7x^3y+48x^2y^2-7xy^3 -35x^2-240xy-35y^2\)
Step-by-step explanation:
Given
Shape: Cube
Dimension: (x+7y), (7x-y) and (xy-5).
Required
Determine the volume
The volume is calculated by multiplying the dimensions:
\(Volume = (x+7y) * (7x-y) * (xy-5)\)
Evaluate the first 2 brackets
\(Volume = [x(7x-y)+7y(7x-y)] * (xy-5)\)
\(Volume = [(7x^2-xy)+(49xy-7y^2)] * (xy-5)\)
\(Volume = [7x^2-xy+49xy-7y^2] * (xy-5)\)
\(Volume = [7x^2+48xy-7y^2] * (xy-5)\)
Open brackets
\(Volume = xy[7x^2+48xy-7y^2] -5[7x^2+48xy-7y^2]\)
\(Volume = 7x^3y+48x^2y^2-7xy^3 -35x^2-240xy-35y^2\)
HELP PLSS!! Find cos (A) given the triangle!!
Answer:
77.3
Step-by-step explanation:
Cos = Adjacent/Hypotenuse
Adjacent = 2.25 & Hypotenuse = 10.25
So that means...
Cos = 2.25/10.25
*When you type in the calculator type Cos-1 (2.25/10.25).
The answer is 77.319....
When you round it, it would become 77.3°.
Hope it's helpful.
1. A goat is tied to the corner of a rectangular shed in a large field full of grass. The rope is 2 yards long and a plane view (from above) of the shed and field is shown below. Use this information for Parts A and B below.
Part A: Calculate the area of grass that the goat can eat.
Part B: What length of rope would enable the goat to eat 30 square yards of grass? Show all your reasoning.
Answer:
Step-by-step explanation:
Step one:
Given data
the length of the rope =2yards----the radius
(Note that the goat can only move in a circular path)
the area the goat can eat is the area of the circle it can cover
1. A= πr^2
A=3.142*2^2
A=3.142*4
A=12.57square yards
Step two:
given that the area A=30 square yards
we want to solve for the radius r
A= πr^2
30=3.142*r^2
r^2=30/3.142
r^2=9.55
r=√9.55
r=3.09 yard
The length is approximately 3 yards
Describe a set of data in which it would be most appropriate to use the mode as the measure of central tendency.
Answer:
It would be most appropriate to use the mode for categorical data, such as favorite ice cream flavor. This is because you can't use mean or median for flavors such as chocolate or vanilla, so mode would make the most sense there.
The table for the quadratic functions f(x) and g(x) are given. x f(x) g(x) −6 36 12 −3 9 3 0 0 0 3 9 3 6 36 12 Determine the type of transformation and the value of k.
The value of k is 1, which is the value of function g(x) (and f(x)) when x = -3 or x = 3.
We can determine the type of transformation and the value of k for each of the functions using the tables provided for f(x) and g(x).
g(x) = 3f(x) (x)
Here, there occurs a vertical stretch/compression transformation. The function g(x) is a three-fold vertical expansion or contraction of f(x).
G(x) has a value of 4, which is identical to the value of k,
whether x = -6 or = 6.
g(x) = f(3x) (3x)
Here, there occurs a horizontal stretch/compression transformation. A horizontal stretch or compression of f(x) by a factor of 1/3 results in the function g(x).
When x = -3 or x = 3,
the value of k is 1, which is also the value of g(x) and f(x).
g(x) = (1/3)f(x) (x)
Here, there occurs a vertical stretch/compression transformation.
A vertical stretch or compression of f(x) by a factor of 1/3 results in the function g(x).
G(x) has a value of 4, which is identical to the value of k,
whether x = -6 or = 6.
g(x) = f(x/3)
Here, there occurs a horizontal stretch/compression transformation. The function g(x) is a three-fold horizontal stretching or compression of f(x). When x = -3 or x = 3, the value of k is 1, which is also the value of g(x) and f(x).
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in a ping pong tournament consisting of twelve teams, each team plays every other team once. how many games are there?
If in a ping pong tournament consisting of twelve teams, each team plays every other team once, there are 66 games in the ping pong tournament.
In a ping pong tournament consisting of 12 teams, each team will play against all the other teams exactly once. Therefore, each game will involve two teams, and each team will play a total of 11 games (since there are 11 other teams to play against).
To count the total number of games in the tournament, we can use the formula:
total number of games = (number of teams x number of games per team) / 2
Since there are 12 teams and each team plays 11 games, we have:
total number of games = (12 x 11) / 2
total number of games = 132 / 2
total number of games = 66
It is important to divide by 2 at the end of the formula since each game involves two teams, so the total number of games would be counted twice if we simply multiplied the number of teams by the number of games per team.
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The temperature dropped 8 degrees between 6:00 P.M. and midnight. The temperature at midnight was 26 F. Write and solve an equation to find the temperature at 6:00 P.M.
Answer:
x = 34
Step-by-step explanation:
-8 = dropped 8 degrees
26 = 26 degrees at midnight
x = temperature at 6
x - 8 = 26
(add 8 to both sides) x = 34
Let Z = (-1, - 2, 1) be a point in R3. Find the closest point to Z that lies on the plane given by X – y +z = 0.
The closest point to Z that lies on the plane X – y + z = 0 is the point (-2/3, 2/3, -2/3).
How to find the closest point to Z that lies on the plane?To find the closest point to Z that lies on the plane X – y + z = 0, we need to find the projection of the vector Z onto a normal vector of the plane.
The normal vector of the plane is the vector (1, -1, 1) since the coefficients of X, y, and z in the plane equation are 1, -1, and 1, respectively.
The projection of Z onto the normal vector can be found using the dot product:
\(proj_n(Z) = (Z . n) * n / |n|^2\)
where Z . n is the dot product of Z and the normal vector n, and |n|^2 is the magnitude squared of n.
Calculating the dot product:
Z . n = (-1)(1) + (-2)(-1) + (1)(1) = -2
Calculating the magnitude squared of n:
\(|n|^2 = 1^2 + (-1)^2 + 1^2 = 3\)
Substituting these values into the projection formula, we get:
\(proj_n(Z) = (-2) * (1, -1, 1) / 3 = (-2/3, 2/3, -2/3)\)
Therefore, the closest point to Z that lies on the plane X – y + z = 0 is the point (-2/3, 2/3, -2/3).
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omar has four times as many apples as bananas. He has 30 pieces of fruit in all. If a represents the number of apples and b represents the number of bananas , how many of each fruit does omar have?
Answer:
Omar would have 24 apples and 6 bananas
Step-by-step explanation:
We know that Omar has 4 times as many apples as bananas., which means a is the number of apples and b is the number of bananas.
a=4b
We also know that Omar has 30 fruits in total:
a+b=30
So we have two equations here. We solve them by substituting for a in the second equation with a=4b from equation 1 as shown:
a=b=30
4b+b=30
5b=30
b=6
Omar has 6 bananas. Great!
Now we substitute for apples. We already know that Omar has 6 bananas now, so all we have to do is:
a=4(6)
a=24
Omar has 24 apples.
So Omar has 6 bananas, and 24 apples! Hope this helps! :)
A radioactive substance has an initial mass of 475 grams and a half-life of 20 days. What equation is used to determine the number of days, x, required for the substance to decay to 63 grams?
The equation used to determine the number of days, x, required for the substance to decay to 63 grams is: x ≈ 83.60
To determine the number of days, x, required for a radioactive substance to decay to 63 grams, we can use the exponential decay formula. The equation that represents the decay of a radioactive substance over time is:
N(t) = N₀ * (1/2)^(t/h)
Where:
N(t) is the remaining mass of the substance at time t
N₀ is the initial mass of the substance
t is the time elapsed
h is the half-life of the substance
In this case, we have an initial mass of 475 grams, and we want to find the number of days required for the substance to decay to 63 grams. We can set up the equation as follows:
63 = 475 * (1/2)^(x/20)
To solve for x, we can isolate the exponential term on one side of the equation:
(1/2)^(x/20) = 63/475
Next, we can take the logarithm (base 1/2) of both sides to eliminate the exponential term:
log(base 1/2) [(1/2)^(x/20)] = log(base 1/2) (63/475)
By applying the logarithmic property log(base b) (b^x) = x, the equation simplifies to:
x/20 = log(base 1/2) (63/475)
Finally, we can solve for x by multiplying both sides of the equation by 20:
x = 20 * log(base 1/2) (63/475)
Using a calculator to evaluate log(base 1/2) (63/475) ≈ 4.1802, we find:
x ≈ 20 * 4.1802
x ≈ 83.60
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1.57*432 help I counted to me it feels like it's wrong
Answer:
1.57 x 432 = 678.24
Step-by-step explanation:
math.
Brainliest please! I am so close to my next rank! Thank you, and have a great day!
What is the value for
y
in the equation
y
=
x
2
when
x
=
3
?
Rolling Two Dice If two dice are rolled one time, find the probability of getting these results: A sum less than 9 b. A sum greater than or equal to 10 c. A 3 on one die or on both dice.
a) Probability of getting a sum less than 9 is 5/18
b) Probability of getting a sum greater than or equal to 10 is 1/6
c) Probability of getting a 3 on one die or on both dice is 2/9.
a) Sum less than 9: Out of 36 possible outcomes, the following combinations are included in a sum less than 9: (1, 1), (1, 2), (1, 3), (1, 4), (2, 1), (2, 2), (2, 3), (3, 1), (3, 2), (4, 1).
There are a total of 10 successful outcomes.
Therefore, the probability of getting a sum less than 9 is: P(A) = 10/36 = 5/18b) Sum greater than or equal to 10: Out of 36 possible outcomes, the following combinations are included in a sum greater than or equal to 10: (4, 6), (5, 5), (5, 6), (6, 4), (6, 5), (6, 6).
There are a total of 6 successful outcomes.
Therefore, the probability of getting a sum greater than or equal to 10 is: P(B) = 6/36 = 1/6c) A 3 on one die or on both dice:
The combinations that include a 3 on one die or both are: (1, 3), (2, 3), (3, 1), (3, 2), (3, 3), (4, 3), (5, 3), and (6, 3).
There are 8 successful outcomes. Therefore, the probability of getting a 3 on one die or on both dice is: P(C) = 8/36 = 2/9
Therefore, the simple answer to the following questions are:
a) Probability of getting a sum less than 9 is 5/18
b) Probability of getting a sum greater than or equal to 10 is 1/6
c) Probability of getting a 3 on one die or on both dice is 2/9.
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Ava and her three friends went out for lunch. Their total bill was $96. If each person paid the same amount, how much would each person pay?
Answer:
96/4= $24 dollars per person
Step-by-step explanation:
Cortez Manufacturing intends to increase capacity by overcoming a bottleneck operation by adding new equipment. Two vendors have presented proposals. The fixed costs are $50,000 for proposal A and $80,000 for proposal B. The variable cost is $14.00 for A and $10.00 for B. The revenue generated by each unit is $22.00. a) The break-even point in units for the proposal by Vendor A = units (round your response to the nearest whole number). b) The break-even point in units for the proposal by Vendor B = units (round your response to the nearest whole number).
(a) The break-even point in units for the proposal by Vendor A = 6250 units
(b) The break-even point in units for the proposal by Vendor B = 6667 units.
In the question ,
it is given that ,
the fixed cost for proposal A \(=\) $50000
the fixed cost for proposal B is = $80000
the variable cost for proposal A is = $14
the variable cost for proposal B is = $10
the revenue generated by each unit is = $22
So , the break even points for both the proposal can be calculated using the formula ,
break even point = (fixed cost)/(contribution margin)
Substituting the values from above ,
we get ,
Break even point for proposal A is
break even point \(=\) 50000/(22 - 14)
= 50000/8
= 6250
Break even point for proposal B is
break even point \(=\) 80000/(22 - 10)
= 80000/12
= 6667
Therefore , break even point for proposal A is 6250 units and for proposal B is 6667 units .
The given question is incomplete , the complete question is
Cortez Manufacturing intends to increase capacity by overcoming a bottleneck operation by adding new equipment. Two vendors have presented proposals. The fixed costs are $50,000 for proposal A and $80,000 for proposal B. The variable cost is $14.00 for A and $10.00 for B. The revenue generated by each unit is $22.00.
(a) The break-even point in units for the proposal by Vendor A = units (b) The break-even point in units for the proposal by Vendor B = units.
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A linear equation with a slope of -3 is steeper or less steep than one with a slope of -5
The slope of a linear equation represents the steepness of the line. A linear equation with a slope of -3 is less steep than one with a slope of -5.
A higher absolute value of the slope indicates a steeper line, while a lower absolute value indicates a less steep line. In this case, the slope of -3 is closer to 0 than the slope of -5, indicating that the line with a slope of -3 is less steep than the line with a slope of -5.
To visualize this, imagine two lines on a coordinate plane. The line with a slope of -5 will have a steeper incline or decline compared to the line with a slope of -3. The magnitude of the slope determines the rate of change of the line. Since -5 has a greater absolute value than -3, the line with a slope of -5 will have a steeper slope and a higher rate of change compared to the line with a slope of -3.
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Solve for b
2(-2b+3)=9
Answer:
b=-3/4 or b=-0.75
Step-by-step explanation:
\(2(-2b+3)=9\)
\(2b+3=\cfrac{9}{2}\)
\(-2b=\cfrac{9}{3} -3\)
\(-2b=\cfrac{3}{2}\)
\(b=-\cfrac{\frac{3}{2} }{2}\)
\(b=-\cfrac{3}{2\times 2}\)
\(b=-\cfrac{3}{4}\)
Hope it helps! :)
The function y=-2(x-2)^(2)+6 shows the daily profit (in hundreds of dollars) of a hot dog stand, where x is the price of a hot dog (in dollars). Find and interpret the zeros of this function.
Select two answers: one for the zeros and one for the interpretation.
The answers are:
Answer:
C. Zeros at x = 2 ± √3, and D. The zeros are the hot dog prices that give $0.00 profit (no profit).
(b) Evan also has a bag of apples that weighs 3.545 pounds. The value of the digit 5 in the tenths place of 3.545 is how many times the value of the digit 5 in the thousandths place? Explain.
The value of the digit 5 in the tenths place of 3.545 is 100 times the value of the digit 5 in the thousandths place.
What is the ratio?It is described as the comparison of two quantities to determine how many times one obtains the other. The proportion can be expressed as a fraction or as a sign: between two integers.
We have:
Evan has a bag of apples that weighs 3.545 pounds.
The value of the digit 5 in the tenths place of 3.545 is 0.500
The value of the digit 5 in the thousandths place of 3.545 is 0.005
Take the ratio of both values:
tenths place value/thousandths place value = 0.500/0.005
tenths place value/thousandths place value = 100
tenths place value = 100(thousandths place value)
Thus, the value of the digit 5 in the tenths place of 3.545 is 100 times the value of the digit 5 in the thousandths place.
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Which ones the right answer?
The answer is D. (7,8)
You are able to count from 0 to ten, and you always put the x number first!
Hope this helps :)
What is the next term in the sequence 0, 10, 20, ... ? Explain the sequence.
Answer:
30
this sequence term is counting by 10's
Ngozi earns $24,000 in salary in the first year she works as an interpreter. Each year, she earns a 3.5% raise.
Answer:
Step-by-step explanation:
S=24000x(1.043)^t
10.
Solve the inequality.
–8 ≤ 2x – 4 < 4
A. –2 ≤ x < 4
B. –6 ≤ x < –2
C. –2 ≤ x < 0
D. 0 ≤ x < 6
Answer:
The Answer is A
Step-by-step explanation:
-8 < 2x-4<4
2x-4<4
-8+4< (2x-4)+4
(2x-4)+4 <4+4
In order to solve these simultaneous inequalities, we need to write them as two separate inequalities, and find the values of x that satisfy both of them.
2x-4<4 In order to solve this linear inequality, we need to group all the variable terms on one side, and all the constant terms on the other side of the inequality.
For example,
- term -4 , will be moved to the left side.
Notice that a term changes sign when it 'moves' from one side of the inequality to the other.
The result is:
A
Answer: A
Step-by-step explanation:
-8 < 2x-4<4
2x-4<4
-8+4< (2x-4)+4
(2x-4)+4 <4+4
In order to solve these simultaneous inequalities, we need to write them as two separate inequalities, and find the values of x that satisfy both of them.
2x-4<4 In order to solve this linear inequality, we need to group all the variable terms on one side, and all the constant terms on the other side of the inequality.
For example,
- term -4 , will be moved to the left side.
Notice that a term changes sign when it 'moves' from one side of the inequality to the other.
The result is:
A
A water tank that is rectangular in shape is 15 feet long, 10 feet wide, and 6 feet deep.
What is the volume of the water tank?
Answer:
900 feet squared
Step-by-step explanation:
15 x 10 x 6 = 900
I need help im struggling
Answer:
5
Step-by-step explanation:
You should do cross multiplication.
Multiply 3 by 10 and 6 by 'h'
So 3×10=6h
6h=30
h=30÷6=5
(-5) x (+8)
integers
Answer:
-40
Step-by-step explanation:
Just multiple the 2 numbers like usual than add the negative to your answer
Simplify −2r(−16r + 3r − 18). −26r2 − 36r 26r2 + 36 26r2 + 36r −26r2 + 36r
Answer:
26r^2 + 36r.
Step-by-step explanation:
A violin student records the number of hours she spends practicing during each of nine consecutive weeks. What is the median number of hours spent practicing per week during this period
The median number of hours spent practicing per week during the nine consecutive weeks is the middle value when the hours are arranged in ascending order.
To find the median, we first need to arrange the recorded number of hours spent practicing per week in ascending order. Let's assume the recorded hours are as follows: 2, 3, 4, 5, 5, 6, 7, 8, 9.
There are a total of nine recorded hours. Since the number of hours is odd, the median will be the middle value. In this case, the middle value is the fifth number, which is 5. Therefore, the median number of hours spent practicing per week during the nine consecutive weeks is 5.
The median is a measure of central tendency that represents the middle value in a set of data. It is a useful measure for finding a typical value in a distribution. In this case, the median gives us an idea of the "typical" number of hours spent practicing per week during the nine-week period.
By arranging the hours in ascending order, we can easily identify the middle value as the median. In situations where there is an even number of data points, the median would be the average of the two middle values.
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Graph the function f(x)={x+1ifx<0}
Real equation |
v
on the coordinate plane.
Answer: The graph is shown below
====================================================
Explanation:
This piecewise function
\(f(x) = \begin{cases}x+1 \ \ \text{ if } x < 0\\2 \ \ \ \ \ \ \ \text{ if } 0 \le x \le 1\\x \ \ \ \ \ \ \ \text{ if } x > 1\\\end{cases}\)
is the same as saying...
when x < 0, f(x) = x+1when \(0 \le x \le 1\), f(x) = 2or when x > 1, f(x) = xAll three of those statements combine to form the piecewise function.
In other words, f(x) has a split personality. It depends on what x is that will determine what f(x) is. To graph this, we graph the pieces of y = x+1, y = 2 and y = x based on the restrictions for x above.
The first piece y = x+1 is graphed when x < 0The second piece y = 2 is graphed when \(0 \le x \le 1\)The third piece y = x is graphed when x > 1The graph is shown below. Note the use of open holes vs closed circle endpoints (indicating which points are not part of the graph vs those that are). The closed endpoints happen when the inequality sign has a "or equal to" as part of it; otherwise, we'll have an open endpoint.