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3 years ago

Which of the following circles would have the same arc length of AB?

Mathematics

2 answers:

CaHeK987 [17]3 years ago

8 0

Answer:

answer is the 3rd and the 6th hope it help

mezya [45]3 years ago

7 0

Answer:

1st

length of arcAB=80/360×2π×4=16π/9

2nd

length of arcAB=45/360×2π×9=9π/4

3rd

length of arcAB=60/360×2π×6=2π

4th

length of arcAB=52/360×2π×7=13π/35

5th

length of arcAB=72°/360×2π×5=18π/25

6th

length of arcAB=90/360×2π×4=2π

your answer is 3rd and 6th.

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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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9 months ago

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boyakko [2]

$\bf 21)\\\\
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3 years ago

Point A(-2, -2) and B(3, -2) are dilated with the center of dilation at C(0, 0) and k=2.

frez [133]

9514 1404 393

Answer:

A'(-4, -4), B'(6, -4), parallel

Step-by-step explanation:

The dilation factor multiplies each of the coordinate values. The line that was y=-2 becomes the line y=-4, a parallel horizontal line.

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nataly862011 [7]

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san4es73 [151]

Answer:

Thats the answer

Step-by-step explanation:

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2 years ago

Which of the following circles would have the same arc length of AB?​

Which of the following circles would have the same arc length of AB?