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Fed [463]
3 years ago
12

HELP ME PLZZZZ I’LL MARK BRAINLIEST

Mathematics
1 answer:
ehidna [41]3 years ago
6 0

Answer:

1. n=24

2.n=10

3.n=11

4.n=2

5.n=24

6.n=4

7.n=9

8.n=5

9.n=4

10.n=2.1

11.n=3

12.n=18

13.n=45

14.n=15/4

15.n=3

16.n=35

Step-by-step explanation:

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Answer:

Step-by-step explanation:

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2 years ago
Consider the probability that no fewer than 74 out of 112 houses will lose power once a year. Assume the probability that a give
Natasha_Volkova [10]

Answer: the normal curve can be used as an  approximation to the binomial probability considering the following condition: when the sample is large, in this case n=112

Step-by-step explanation:

for a binomial experiment to be approximated to normal distribution, the following conditions must be present:

i.  sample size must be large, in this case sample size is 112

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5 0
3 years ago
The formula for the volume of a cylinder is V = pir2h. Solve the formula for the height h.
RideAnS [48]
H=v/(2pir)

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5 0
3 years ago
Solve for the variable: 6/25 = d/30
pentagon [3]

Answer:

d = 7.2

Step-by-step explanation:

We can cross multiply the equation to get:

6 * 30 = 25 * d

(* is multiplication sign by the way)

180 = 25d

Divide both sides by 25 to get:

d = 7.2

3 0
3 years ago
An aquarium 2 m long, 1 m wide, and 1 m deep is full of water. Find the work (in J) needed to pump half of the water out of the
Nitella [24]

Answer:

W=2452.5 J

Step-by-step explanation:

The work is define as the integral of the force times distance. So we have:

W=\int^{a}_{b}Fxdx

Now, we can write the force in terms of density.

F=m*g=\rho Vg

V is the volume (V=2*1*1=2 m³)

So the work will be:

W=\int^{0.5}_{0} 2*1000*9.81*xdx=\int^{0.5}_{0} 2*1000*9.81*xdx=\int^{0.5}_{0}19620xdx=19620(\frac{x^{2}}{2})|^{0.5}_{0}

The limit of integration is between 0 and 0.5 because we want to pump half of the water out of the aquarium.

W=19620(\frac{x^{2}}{2})|^{0.5}_{0}=19620(\frac{0.5^{2}}{2})

W=2452.5 J

I hope it helps you!

8 0
3 years ago
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