3 years ago

DeShawn is designing a picture frame. He plots the frame on the coordinate grid below.

Mathematics

1 answer:

meriva3 years ago

5 0

Answer:

20 inches

Step-by-step explanation:

<u><em>Find the distance BC</em></u>

we know that

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

we have

B(-3,-3),C(1,-3)

substitute

$BC=\sqrt{(-3+3)^{2}+(1+3)^{2}}$

$BC=\sqrt{(0)^{2}+(4)^{2}}$

$BC=4\ units$

Remember that

each unit on the grid represents 5 inches

Multiply the distance in units by 5

$BC=4(5)=20\ in$

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The simplified expression of 32/5 x 3(-7/5) is -672/25

<h3>How to simplify the expression?</h3>

The mathematical expression is given as:

32/5 x 3(-7/5)

Evaluate the product of 3 and -7/5

32/5 x 3(-7/5) = 32/5 x -21/5

Evaluate the product of 32 and -21

32/5 x 3(-7/5) = 672/5 x -1/5

Evaluate the product of 5 and 5

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So, we have:

32/5 x 3(-7/5) = -672/25

Hence, the simplified expression of 32/5 x 3(-7/5) is -672/25