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Zigmanuir [339]
3 years ago
14

Compare:

Mathematics
1 answer:
AVprozaik [17]3 years ago
6 0
I hope this helps you

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A circular oil spill continues to increase in size. The radius of the oil spill, in miles, is given by the function r(t) = 0.5 +
cestrela7 [59]

The <em><u>correct answer</u></em> is:

A(r(t))=\pi(0.25+2t+4t^2)

Explanation:

To write a composite function, we apply one function to another given function. In this case, we want to find area in terms of time; this means that the function A(r) gets applied to the function r(t).

In order to do this, we replace r with r(t). We already know that r(t)=0.5+2t; this means we replace r with 0.5+2t:

A(r(t))=π(0.5+2t)²

To simplify this, we simplify the squared term:

A(r(t)) = π(0.5+2t)(0.5+2t)

A(r(t)) = π(0.5*0.5+0.5*2t+2t*0.5+2t*2t)

A(r(t)) = π(0.25+t+t+4t²)

A(r(t)) = π(0.25+2t+4t²)

5 0
3 years ago
Read 2 more answers
PLEASE ANSWER ALL QUESTIONS!!! WILL MARK BRAINLIEST
Basile [38]

Answer:

олкоклаладплпгкшкггаг

л ш

Step-by-step explanation:

олулушвшкоклаоклкллклклклкле

6 0
2 years ago
Hershel had 100 baseball cards that he labeled from 1-100. He started with number
Ierofanga [76]

Answer:

Hey there!

This question is basically asking for the least common multiple, or LCM of the three numbers.

If it is a multiple of 10, it has to be a multiple of 5. Thus, the only thing we need to do now, is find the LCM of 10 and 7, which is 70.

Thus, your answer is 70.

Hope this helps :)

8 0
3 years ago
Read 2 more answers
What is 9 + 10 ? I’m so confused. People keep telling me it’s 21 but it doesn’t seem right.
juin [17]

Answer:

It's 21.

Step-by-step explanation:

The factors of 9 are 3 and 3. (You need to multiply 3x3 to get 9.) The factors of 10 are 5 and 2. But, if you multiply 3 by 5, which gives you 15, and multiply the other 3 by 2, which gives you 6, and then add 6 to 15, you get 21.

8 0
3 years ago
a point on a perpendicular bisector is 7cm from each endpoint of the bisected segment and 5cm from the point of intersection. Wh
love history [14]

9514 1404 393

Answer:

  about 9.80 cm

Step-by-step explanation:

The length of half the segment (h) can be found from the Pythagorean theorem:

  h² +5² = 7²

  h² = 7² -5² = 49 -25 = 24

  h = √24 = 2√6

This is half the segment length, so the whole segment length is ...

  L = 2h = 2(2√6)

  L = 4√6 ≈ 9.7980

The length of the segment is 4√6 ≈ 9.80 cm.

8 0
3 years ago
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