2 years ago

Select the correct answer.

Mathematics

1 answer:

dolphi86 [110]2 years ago

3 0

Check the picture below.

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Find the inverse of 2∛(x+2)

Artemon [7]

$y=2\sqrt[3]{x+2}\ \ \ |divide\ both\ sides\ by\ 2\\\\\sqrt[3]{x+2}=\dfrac{y}{2}\to x+2=\left(\frac{y}{2}\right)^3\ \ \ |subtract\ 2\ from\ both\ sides\\\\x=\dfrac{y^3}{2^3}-2\\\\x=\dfrac{1}{8}y^3-2\\\\\boxed{f(x)=2\sqrt[3]{x+2}\to f^{-1}(x)=\frac{1}{8}y^3-2}$

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3 years ago

Work out cube root of 512 : reciprocal of 0.4. Give your answer in the form n : 1

galben [10]

Step-by-step explanation:

Thanks, so cube root of 512 is 8 and reciprocal of 0.4 is 2.5 then:

8 : 2.5 / divide both by 2.5 to get:

3.2 : 1 that's my answer right?

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2 years ago

I have sons but no daughter ,each of my sons has twice as many brothers as he has children . each of my sons has same no of chil

Lubov Fominskaja [6]

Answer:

Step-by-step explanation:

keeping track of family relations can be difficult. If Edna marries your mother’s uncle Charlie, what should you call her? If your father’s cousin’s daughter just had a baby boy, how should you two be introduced? Who is your “great great aunt”, and how can you find your “first cousin twice removed”? Fortunately, a bit of mathematical logic can clarify who should be called what, and why – and even measure the degree of genetic similarity between different relatives.

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3 years ago

How do i do this?? Can you please help ? :)

Paul [167]

-3(b-4) = -2b
-3b + 12 = -2b
-3b + 3b + 12 = -2b + 3b
12 = b

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3 years ago