3 years ago

3x + 4y = -23

2 answers:

5 0

Answer:

the answer is -3/4 because if you use step by step explanation y= mx+b slope intercept form means y=mx+b use also implicit differentiation

Step-by-step explanation:

grandymaker [24]3 years ago

3 0

Answer:

the answer was B (3,-8) i took the test with a 100

Step-by-step explanation:

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The volume of a cube is 124 cubic inches.<br> What is the side length of the cube?

ivolga24 [154]

Answer:

4.987 in

Step-by-step explanation:

Volume of a cube= (where x= side)

x³

we know that

124=x³

∛124=x

x=4.986630952 which rounds to

4.987

8 0

2 years ago

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kifflom [539]

Answer:

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Step-by-step explanation:

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2 years ago

Evaluate $\dfrac{2\sqrt{72}}{\sqrt{8}+\sqrt{2}}$.

Pavlova-9 [17]

<h3>Answer: 4</h3>

========================================================

Work Shown:

$\frac{2\sqrt{72}}{\sqrt{8}+\sqrt{2}}\\\\\frac{2\sqrt{36*2}}{\sqrt{4*2}+\sqrt{2}}\\\\\frac{2\sqrt{36}*\sqrt{2}}{\sqrt{4}*\sqrt{2}+\sqrt{2}}\\\\\frac{2*6*\sqrt{2}}{2*\sqrt{2}+\sqrt{2}}\\\\\frac{12\sqrt{2}}{2\sqrt{2}+\sqrt{2}}\\\\\frac{12\sqrt{2}}{3\sqrt{2}}\\\\\frac{12}{3}\\\\4$

Note in step 2, I factored each number in the square root to pull out the largest perfect square factor. From there, I used the rule that $\sqrt{A*B} = \sqrt{A}*\sqrt{B}$ to break up the roots.