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2 years ago

..................................

Mathematics

1 answer:

pychu [463]2 years ago

3 0

Hold on im trying to remember

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What is the distance between the points (-1,-9) and (4,-2)?

Crank

$\sqrt{74}$ , or 8.60

Just use the distance formula

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2 years ago

How much will 5 ounces cost?

Yanka [14]

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Step-by-step explanation:

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3 years ago

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How do i calculate percent accuracy? I got 20 questions out of 21 correct but I need to figure out the percent accuracy for anot

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3 years ago

3/7 of 8th graders play sports. is 3/5 of the 8th graders that play sports are boys, what fraction of the 8th graders are boys

Svetach [21]

Answer:

$\dfrac{9}{35}$ is the fraction of 8th graders who are boys.

Step-by-step explanation:

Let total number of 8th graders = $x$

Given that, $\frac{3}{7}$ of 8th graders play sports

$\Rightarrow$ 8th graders who play sports = $\frac{3}{7} \times x$

Also, Given that, $\frac{3}{5}$ of 8th graders that play sports are boys

Number of 8th graders that play sports, and are boys = $\frac{3}{5} \times \text{Number of 8th graders who play sports}$

$\Rightarrow \dfrac{3}{5} \times \dfrac{3}{7} \times x\\\Rightarrow \dfrac{9}{35} \times x$

Hence, the answer is:

$\dfrac{9}{35}$ is the fraction of 8th graders who are boys.

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3 years ago

What is the simplest form of the expression? 3sqrt(24a^10b^6)?

Anastasy [175]

Answer:

$\text{The simplest form is }6\sqrt6a^5b^3$

Step-by-step explanation:

Given the expression $3sqrt(24a^{10}b^6)$ .

we have to find the simplest form of the expression.

$3sqrt(24a^{10}b^6)$

= $3(24^{\frac{1}{2}}a^{\frac{10}{2}}b^{\frac{6}{2}})$

= $3(24^{\frac{1}{2}}a^5b^3)$

= $6\sqrt6a^5b^3$

which is the simplest form of the given expression.

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3 years ago

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