Mathematics: A rectangular swimming pool has a perimeter of 150 meters. The length of the pool is twice the width of the pool. What is the length of the pool?

A rectangular swimming pool has a perimeter of

davestrider404

15.03.2021

Step-by-step explanation:

perimeter=150

lets name the length x

length=x

width=x-2

2[x±x-2]=150

2x±2x-4=150

4x=154

154÷4=77

x=77

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emalvidrez5205

18.10.2022

$\frac{1}{3^{4} }$

Step-by-step explanation:

Using the rules of exponents

$(a^{m}) ^{n}$ = $a^{mn}$ and $a^{-m}$ = $\frac{1}{a^{m} }$

Given

$(3^{2} )^{-2}$ = $3^{2(-2)}$ = $3^{-4}$ = $\frac{1}{3^{4} }$ = $\frac{1}{81}$

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