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Blababa [14]
3 years ago
7

Help ill give 5 stars

Mathematics
1 answer:
AfilCa [17]3 years ago
8 0
21.16 sorry if its incorrect
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the circular ripple caused by dropping a stone in a pond is increasing in area at a constant rate of 20 square meters per second
mojhsa [17]

Answer:

  2/π ≈ 0.637 m/s

Step-by-step explanation:

The rate of change of area with respect to time is ...

  A = πr²

  dA/dt = 2πr·dr/dt

Filling in given values in the above equations, we can find r and dr/dt.

  25π = πr²   ⇒   r = 5

  20 = 2π·5·dr/dt

  dr/dt = 20/(10π) = 2/π . . . . meters per second

The radius is increasing at the rate of 2/π ≈ 0.637 meters per second.

4 0
3 years ago
The slope-intercept form of the equation of a line that passes through point (–3, 8) is y = –x + 6. What is the point-slope form
Kisachek [45]

Answer:

-1

Step-by-step explanation:

y = -x + 6 the number in front of x is the point slope

so, the answer is -1 because the number in front of x is -1

6 0
3 years ago
Please help thank you
nevsk [136]

Answer:

75% .

Step-by-step explanation:

25%, 50%, 75%, 100%

5 0
3 years ago
0.672 nearest hundreth
kolezko [41]
0.67 Since 2 (in the thousandths place) is lower than 5 you round down wich just leaves you with 0.67



3 0
3 years ago
Read 2 more answers
Determine if -5 is a solution for the inequality 1-2d-9
lozanna [386]
What is the inequality sign?!?
6 0
4 years ago
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