All categories

3 years ago

PLEASE HELP!! Please show your work in explanation no nonsense or blank answers please ;)

Mathematics

1 answer:

krok68 [10]3 years ago

8 0

Answer:

r = 4.908

Step-by-step explanation:

V = 885

height (given in the picture) = 11.7

V = $\pi r^2$ h

V = (3.14)( $r^2$ )(h)

885 = (3.14)( $r^2$ )(11.7)

885/3.14/11.7 = $r^2$

Take the square root and you get 4.908.

You might be interested in

Do. Had an album that holds 900 photos. Each page of albums holds 9 photos. If 37% of the album is empty, how many pages are fil

Xelga [282]

Answer:

63 pages are filled with photos.

Step-by-step explanation:

900 photos with 9 photos a page 900/9=100

100 pages

37% of 100 is 37

100-37 is 63

7 0

3 years ago

What is the sales tax on a jacket at 750 of the sales tax rate is 7%

SIZIF [17.4K]

Sales tax is $52.50

6 0

3 years ago

The Wagner family uses up a 1/2-gallon jug of milk every 3 days. At what rate do they drink milk?

luda_lava [24]

Answer:

$\frac{1}{6}$ gallon per day

Step-by-step explanation:

Rate = gallons per day

Rate = $\frac{0.5 gallons}{3 days}$ = $\frac{1 gallon}{6 days}$

5 0

2 years ago

Read 2 more answers

HELP PLEASE.................

Kryger [21]

Zero

There is no solution for these equations as there is no even one point of intersection between them

6 0

3 years ago

Assume that 8% of people are left-handed. We select 6 people at random. a) How many lefties do you expect? b) With what sta

klemol [59]

Answer:

a) 0.48

b) 0.6645

c) 12.5

Step-by-step explanation:

For each person, there are only two possible outcomes. Either they are left-handed, or they are not. The probabilities of each person being left-handed are independent. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

The expected value of the binomial distribution is:

$E(X) = np$

The standard deviation of the binomial distribution is:

$\sqrt{V(X)} = \sqrt{np(1-p)}$

The number of trials expected to find r sucesses is given by

$N = \frac{r}{p}$

In this problem we have that:

Assume that 8% of people are left-handed. We select 6 people at random.

This means that $p = 0.08, n = 6$

a) How many lefties do you expect?

$E(X) = np = 6*0.08 = 0.48$

b) With what standard deviation?

$\sqrt{V(X)} = \sqrt{np(1-p)} = \sqrt{6*0.08*0.92} = 0.6645$

c) If we keep picking people until we find a lefty, how long do you expect it will take?

Number of trials to find 1 success. So

$N = \frac{r}{p} = \frac{1}{0.08} = 12.5$

4 0

3 years ago