2 years ago

Equation of a circle with the center (-4, 2) and the radius at 4?

Mathematics

1 answer:

mojhsa [17]2 years ago

4 0

X2+8x+y2−4y+4=0 is the Answer

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1/2y + 1/3 = -1/9 what is this answer please help

sleet_krkn [62]

Answer:

y = -8/9

Step-by-step explanation:

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2 years ago

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Hannah went swimming after she woke up. It took Hannah 15 minutes to get ready to go swimming. She swam for 30 minutes and then

saul85 [17]

Find the total minutes:

15 + 30 + 25 + 35 = 105 minutes

This is equal to 1 hour and 45 minutes

Subtract 1 hour and 45 minutes from 9:30

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2 years ago

please help! functions and relations. f(x)= square root of x-4. find the inverse of f(x) and it’s domain.

likoan [24]

ANSWER:

$\:D.\text{ }f^{-1}\left(x\right)=\left(x+4\right)^2;x\ge-4$

STEP-BY-STEP EXPLANATION:

We have the following equation:

$f(x)=\sqrt{x}-4$

The inverse is the following (we calculate it by replacing f(x) by x and x by f(x)):

$\begin{gathered} x=\sqrt{f^{-1}(x)}-4 \\ \\ \sqrt{f^{-1}(x)}=x+4 \\ \\ f^{-1}(x)=(x+4)^2 \end{gathered}$

The domain would be the range of the original equation, and it would be the range of values that f(x) could take, which was from -4 to positive infinity, that is, f(x) ≥ -4.

Therefore, the domain is x ≥ -4.

So the correct answer is D.

$\:f^{-1}\left(x\right)=\left(x+4\right)^2;x\ge -4$

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2 months ago

Charles asked his teammates how many hours they practiced swimming during the week. He recorded his data in the table below and

Kitty [74]

Answer:

The answer is C.

Step-by-step explanation:

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A triangle has one angle that measures 26 degrees, one angle that measures 47 degrees, and one angle that measures 107 degrees.

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It’s 3 and then you have a lot to go get it all

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1 year ago

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