4 years ago

Simplify. a. -40 = (-5)

1 answer:

8 0

Answer:

-40=-5 is the answer

Step-by-step explanation:

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Answer:

Step-by-step explanation:

item 4 Find the perimeter of the window. Round your answer to the nearest tenth. 90 cm

You did not state the diameter or radius of the window

so, i will use 90cm as the diameter of the window

First, I'd calculate the half circumference of the window.

The formula for circumference is $c = 2\pi r$ ,

Half of it would just be $c/2 = r\pi$

Since our diameter is 90 cm, our radius is 45 cm.

Circumference =

$=45\pi \\= 141.37 cm$

circumference is also the same with perimeter

<h3>so, the answer is 141.37cm</h3><h3>to nearest tenth = 141.4cm</h3>

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