3 years ago

ANSWER FAST Jill had the following scores on her math quizzes 20 ,40, 40, 40 ,60 ,60 ,60 ,60 ,80, 80

1 answer:

3 0

Answer: 62.

Step-by-step explanation: The mean is the average. In order to find the average, we need to add all of the numbers up, then divide by the number of quizzes. So:

20 + 40 + 40 +40 + 60 + 60 + 60 + 60 + 80 + 80 + 80 + 80 + 100 = 800

800 / 13 = 61.5, appr. 62.

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Please show me the work!

Papessa [141]

Answer:

9/2π cm/s

Step-by-step explanation:

Volume of the spherical balloon V= 4/3πr³

Rate of change of volume dV/dt = dV/dr * dr/dt

dV/dr = 3(4/3πr²)

dV/dr = 4πr²

dV/dr = 4π(2)²

dV/dr = 16π

If V = 72cm²/s

72 = 16π*dr/dt

dr/dt = 72/16π

dr/dt = 9/2π cm/s

Hence the radius is changing at 9/2π cm/s

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2 years ago

Tyler walk 2 miles a day for the first week of his exercise plan then he walked 3 miles a day for the next nine days how many mi

igor_vitrenko [27]

Answer is 41 miles total

Equation is (2miles x 7) + (3 miles x 9) = total

14 + 27 = total miles

41 = total miles

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1 year ago

9 (1/3)^n-1 what is the tenth term

NARA [144]

Answer:

$a_{10}=\frac{1}{2187}$

Step-by-step explanation:

Simply plug in 10 for <em>n</em>

9(1/3)¹⁰⁻¹

9(1/3)⁹

9(1/19683)

9/19683

$a_{10}=\frac{1}{2187}$

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3 years ago

Sasha is selling t-shirts. She uses the function f(x) = 2x + 8 to determine her sales, where

ololo11 [35]

Answer:

f(x)=56

Step-by-step explanation:

2(24)+8=56

7 0

3 years ago

In a string of 100 christmas lights, there is

RideAnS [48]

We want to find $\mathbb P(X\ge6)$ , where $X$ is a binomial distribution with $n=100$ and $p=0.015$ . So

$\mathbb P(X\ge6)=1-\mathbb P(X$

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3 years ago