Someone pls answer ? It’s 8,9,1,2

Mathematics

1 answer:

Bad White [126]2 years ago

8 0

Answer:

Step-by-step explanation:

any number ×0=0

so b

additive identity

any number+0=same number

$\frac{(3+u)^2}{8} =\frac{(3+5)^2}{8} =\frac{8^2}{8} =\frac{64}{8} =8\\where ~u=5$

-2(a-7)=-2×a-2×(-7)=-2a+14

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(a + b)(a ² - ab + b ²) Please help!

kvasek [131]

Hey there :)

( a + b )( a² - ab + b² )
Let us distribute ( a + b )

a ( a² ) + a ( - ab ) + a ( b² ) + b ( a² ) + b ( - ab ) + b ( b² )
a³ - a²b + ab² + a²b - ab² + b³

We can simplify further:
- a²b + a²b = 0
ab² - ab² = 0

a³ + b³

You can see in the picture I have attached that this is the 7th formula

4 0

2 years ago

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The width of the Ochoa Community Pool is 20 feet.The length is twice as long as it’s width.What is the perimeter of the pool?

yan [13]

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3 years ago

1/5 divided by 4 equals to what

Dima020 [189]

Answer:

1/5 divided by 4 equals to 0.05

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1 year ago

If 30 buses can carry 1,500 people, how many people can 5 buses carry? A 200 © 500 B 250 D 750

maksim [4K]

Answer:

$\boxed {\boxed {\sf 250 \ people}}$

Step-by-step explanation:

Let's set up a proportion using the following setup.

$\frac {buses}{people}=\frac {buses}{people}$

We know 30 buses can carry 1,500 people.

$\frac {30 \ buses}{1500 \ people}=\frac {buses}{people}$

We don't know how many people 5 buses can carry, so we say 5 buses carry x people.

$\frac {30 \ buses}{1500 \ people}=\frac {5 \ buses}{x \ people}$

$\frac {30 }{1500 }=\frac {5 }{x }$

Cross multiply. Multiply the numerator of the first fraction by the second fraction's denominator. Then, multiply the first denominator by the second numerator.

$30*x=1500*5\\30x=7500$