3 years ago

What is the value of x

1 answer:

3 0

Sum of all adjacent angles is 180°.

3x + 12 + x = 180
4x + 12 = 180
4x = 168
x = 42°

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Answer: x = 42°
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Which represents a side length of a square that has an area of 450 square inches?

amm1812

The formula of an area of a square:

$A=a^2$

a - a side

We have $A=450\ in^2$

substitute:

$a^2=450\to a=\sqrt{450}\\\\a=\sqrt{225\cdot2}\\\\a=\sqrt{225}\cdot\sqrt2\\\\\boxed{a=15\sqrt2\ in}$

Used:

$\sqrt{a\cdot b}=\sqrt{a}\cdot\sqrt{b}$

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On a test Matilda answered 12 out of the first 15 correctly. If this rate continues how many of the next 25 problems will she an

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Yakvenalex [24]

Answer:

Question 2:

45 pages 700 pages

-------------- = -------------

1 hour X hours

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