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2 years ago

58:11

Mathematics

1 answer:

navik [9.2K]2 years ago

7 0

Answer:

not sure of the answer cause

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Which expression is equivalent to...? Screenshots attached, please help.

BaLLatris [955]

For this case we must simplify the following expression:

$\sqrt [3] {64 * a ^ 6 * b ^ 7 * c ^ 9}$

We rewrite:

$64 = 4 ^ 3\\a ^ 6 = (a ^ 2) ^ 3\\b ^ 6 * b = ((b ^ 2) ^ 3 * b)\\c ^ 9 = (c ^ 3) ^ 3$

So:

$\sqrt [3] {4 ^ 3 * (a ^ 2) ^ 3 * (b ^ 2) ^ 3 * b * (c ^ 3) ^ 3} =\\\sqrt [3] {4 * a ^ 2 * b ^ 2 * c ^ 3) ^ 3 * b} =$

By definition of properties of powers and roots we have:

$\sqrt [n] {a ^ m} = a ^ {\frac {m} {n}}$

So:

$4a ^ 2b ^ 2 c ^ 3 \sqrt [3] {b}$

Answer:

Option B

3 0

3 years ago

(−1) to the power of 3

stiv31 [10]

(-1) ^3

-(1) * (-1) * (-1)

1 * (-1)

=-1

Answer: -1

3 0

3 years ago

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If each dozen cost $3.70 what should be the selling price be if he wants to make an 80% profit?

klemol [59]

Answer: $6.66

Explanation:
3.70 multiplied by 0.80 = 2.96.
3.70 + 2.96 = $6.66

7 0

2 years ago

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5x + 3y = 4z Solve for Y.

harkovskaia [24]

Answer:

y = -5/3x + 4/3z

Step-by-step explanation:

5x + 3y = 4z

3y = -5x + 4z

y = -5/3x + 4/3z

6 0

3 years ago

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Need help pls pls!!!!!!

Artyom0805 [142]

Answer:

2916 ft³

Step-by-step explanation:

•the diameter of the sphere is 18 ft , to find the radius(r) you have to divide it by 2 ,

•which gives 9ft .

•And they also told you to take the value of pie as 3.

•So, substitute the values into the formula given for V and you will have your answer.

Hope I was able to help:))

4 0

3 years ago