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3 years ago

A lawn sprinkler spins in a circle. The sprinkler covers a radius of 12

Mathematics

2 answers:

vaieri [72.5K]3 years ago

6 0

Answer:

452.39 feet

Step-by-step explanation:

the area of a circle is A=r^2π

the radius is 12 feet and lets us 3.14 for pi

A=12^2(3.14)

A=144(3.14)

A=452.39

vazorg [7]3 years ago

3 0

Answer:

Step-by-step explanation:

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3 years ago

George is twice the age of Mike minus 5. The sum of George and Mike's ages is 31. How old is George and write an equation to rep

Temka [501]

Answer:

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Step-by-step explanation:

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3 years ago

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3 years ago

Read 2 more answers

Solve this in distributing -(5.3x-7y)-9.6

algol13

Answer:

$-\left(5.3x-7y\right)\left(-9.6\right)=\:50.88x-67.2y$

Step-by-step explanation:

Given the expression

$-\left(5.3x-7y\right)\times \left(-9.6\right)$

$=-\left(-9.6\right)\left(5.3x-7y\right)$

Apply distributive law

$a\left(b-c\right)=ab-ac$

$a=-\left(-9.6\right),\:b=5.3x,\:c=7y$

so the expression becomes

$=-\left(-9.6\right)\times \:5.3x-\left(-\left(-9.6\right)\right)\times \:7y$

$=-\left(-9.6\right)\times \:5.3x+7\left(-9.6\right)y$ ∵ $-\left(-a\right)=a$

$\mathrm{Remove\:parentheses}:\quad \left(-a\right)=-a,\:-\left(-a\right)=a$

$=9.6\times \:5.3x-7\times \:9.6y$

$=50.88x-7\times \:9.6y$

$=50.88x-67.2y$

Therefore,

$-\left(5.3x-7y\right)\left(-9.6\right)=\:50.88x-67.2y$

3 0

3 years ago