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3 years ago

SOMEONE HURRY RIGHT NOW

1 answer:

8 0

1) The coordinates of X are (1, -3)
2) When you reflect over a line parallel to the y-axis the x-coordinate does not change, so the x-coordinate of X' is 1.
3) The vertical distance between the point X (1, - 3) and the line y = 1 is 1 - (-3) = 1 + 3 = 4.
4) The vertical distance of the point X' has to ve the same, 4, and the point X' will be 4 units over the line y = 1. That leads to y = 1 + 4 = 5.
So the y-coordinate of the point X' is 5.
5) Conclusion the coordinates of the point X' are x = 1, y = 5, i.e.point (1,5)

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Four years ago, Jane was twice as old as Sam. Four years on from now, Sam will be 3/4 of Jane's age. How old is Jane now?

Sever21 [200]

How old is sam? We need that first

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3 years ago

Read 2 more answers

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White raven [17]

Here is your answer, you just count to 10... Simple as that.

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3 years ago

Please help and give me an explanation I don’t understand or know if it’s correct

andrezito [222]

Hello :) we got similar answers but i believe you made a few distributing mistakes! hopefully my work makes sense, if not i’ll totally try to explain more

p.s i might be too late whoops

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3 years ago

a. Assuming a linear relationship between year and salaries by gender, determine when the median annual salary for women will ex

Snowcat [4.5K]

First We have to find the tendency for both cases individually. Let's calculate the equation of the line for each one.

For Men we take two points (year, salary) ( 2 , 35,308) ( 4 , 37076) With these points we are going to calculate the slope of the line.

$m=\frac{y2-y1}{x2-x1}=\frac{37076-35308}{4-2}=884$

Then, we have to calculate the intercept of the line with the slope and point (2, 35,308)

y= mx+ b

35,308 = 884*(2)+b

Isolating b,

35,308 - 1768 = b

33540=b

The first equation must be y = 884x +33540

For Women we take two points (year, salary) ( 2 , 27,508) ( 4 , 29,796 ) With these points we are going to calculate the slope of the line

$m=\frac{y2-y1}{x2-x1}=\frac{29,796-27,508}{4-2}=1144$

Then, we have to calculate the intercept of the line with the slope and point (2, 27,508)

y= mx+ b

27,508 = 1144*(2)+b

Isolating b,

27,508 - 2288 = b

25220=b

The second equation must be y = 1144x +25220

Now We are going to find the incercept of these equations, we are going to formulate the following equation

884x+33540 = 1144x+25220

33540-25220=1144x-884x ( Isolating terms with x)

8320=260x (Solving on each side)

8320/260 = x =32 ( Isolating x)

It implies that after 32 years Women would exceed men.

B. It seems that as the number of bachelor degrees of women exceeds men's number, the salary increases at a higher rate. So , the change would be greater for women than men every year.

3 0

1 year ago

Solve the system of equations below then check the solution both algebraically and graphically provide evidence

Colt1911 [192]

Explanation:

1. Solve for x in 4x - 2y = -2
2. Substitute x = y-1/2 into 3x + 2y = -12
3. Solve for y in 3(y-1)/2 +2y=-12
4. Substitute y= -3 into x = y-1/2

Answer;

x=−2
y=−3

3 0

3 years ago