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3 years ago

How do i solve this??

Mathematics

1 answer:

avanturin [10]3 years ago

8 0

i do not know the answer

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Which pairs of points would result in a line with a rate of change of 2:1? Select all that apply.

Helen [10]

Answer:

Options A, C, D are true.

Step-by-step explanation:

We have to choose the pair of points from that given in the attached file which will result in a line with a rate of change i.e. slope of 2:1 i.e. 2.

A. The points are (-4,-11) and (-2,-7).

Then the slope of the joining line is $\frac{-7-(-11)}{-2-(-4)} =2$

B. The points are (5,6) and (-5,12).

Then the slope of the joining line is $\frac{12-6}{-5-5} =-\frac{3}{5}$

C. The points are (0,-3) and (-4,-11).

Then the slope of the joining line is $\frac{-11-(-3)}{-4-0} =2$

D. The points are (0,-3) and (5,7).

Then the slope of the joining line is $\frac{7-(-3)}{5-0} =2$

Therefore, options A, C, D are true. (Answer)

7 0

3 years ago

What is the answer to 5x + 2 = 3x

3241004551 [841]

Answer:

x = -1

Explanation:

5x + 2 = 3x

5x - 3x = -2

2x = -2

x = $\dfrac{-2}{2}$

x = -1

Hope this helps! ☺

4 0

3 years ago

Read 2 more answers

Which is the graph of x-y=1?

Vikentia [17]

Answer:

In graph

Step-by-step explanation:

First put it in Slope -Intercept form.

then graph the y- intercept first.

After that it's rise over run so think 1/1

up 1 over one.

7 0

3 years ago

BE QUICK! WILL GIVE BRAINLIEST TO CORRECT ANSWER

storchak [24]

Answer:

$7.5

Step-by-step explanation:

3/.4

6 0

3 years ago

A window is being replaced with tinted glass. The plan at the right shows the design of the window. Each unit length represents

PolarNik [594]

The answer is $911.68.

After a little research on the internet, I found the design of the window.
First, you need to find the area of the window which is a composite figure made up of a rectangle and a circle. So, the total area (A) is the sum of the area of the rectangle (A1) and the area of the circle (A2).

Area of the rectangle with length l and width w is:
A = l * w
According to the image, l = 5 ft and w = 4 ft.
A1 = 5 * 4 = 20 ft²

Area of the circle with radius r is:
A = r²π
According to the image, r = 2 ft.
A2 = 2² * 3.14 = 12.56 ft²

The area of the window is:
A = A1 + A = 20 ft² + 12.56 ft² = 32.56 ft²

<span>The glass costs $28 per square foot, so to replace the glass will cost:
</span>32.56 ft² * $28/ft² = $911.68

7 0

4 years ago