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3 years ago

A scale model of a school bus is 3 inches long. The actual school bus is 45 feet long. Which statement(s) are true?

Mathematics

1 answer:

BlackZzzverrR [31]3 years ago

6 0

Answer:

The scale of the model is 1 in.:15 ft.

Step-by-step explanation:

In order to find this, first express the terms that you know.

3 in.:45 ft.

Now simplify by dividing both by the greatest common factor, which in this case is 3.

1 in.:15ft.

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If x − √a is a factor of 2x4 − 2a 2x 2 − 3x + 2a3 − 2a2 + 3 , find the value of a.

iragen [17]

Answer:

$\boxed{\sf \ \ \ a = 1 \ \ \ }$

Step-by-step explanation:

Hello,

saying that $x-\sqrt{a}$ is a factor means that $\sqrt{a}$ is a zero which means

$2(\sqrt{a})^4-2a^2(\sqrt{a})^2-3*\sqrt{a}+2a^3-2a^2+3=0\\\\ 2a^2-2a^3-3*\sqrt{a}+2a^3-2a^2+3=0\\\\3-3*\sqrt{a}=0\\\\\sqrt{a}=\dfrac{3}{3}=1\\\\ a = 1$

so the solution is a = 1

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3 0

3 years ago

Hello everyone can you help me with this problem? Please

tekilochka [14]

Answer:

$a=10.5$

Step-by-step explanation:

$2.25(a+1.3)=20.7\\2.25a+2.925=20.7\\-2.925\\2.25a=23.625\\$

÷ $2.25$

$a=10.5$

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2 years ago

169 divided by 4 show work

nikitadnepr [17]

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2 years ago

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3 years ago

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amm1812

Answer:

Option A

Step-by-step explanation:

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