All categories

3 years ago

Can anyone help me with this?

Mathematics

1 answer:

ivann1987 [24]3 years ago

8 0

Answer:

336

Step-by-step explanation:

The formula for a volume of a cylinder is πr²h

The description of the terms:

π = pie = 3.14

r = radius

h = height

One thing to remember in this formula :

πr² is also the formula for the area of a circle

In the figure given, the area of the base, which is a circle, is 48 cm²

Now, we got one of the part in the formula for the volume of the cylinder.

πr²h = volume of cylinder

πr² = 48

48(7) = volume of cylinder

336 = volume of the cylinder

Hope I helped!

You might be interested in

School started at 8:05 a.m and ended at 2:40p.m. the work below shows Erica's calculation of the length of the school day

harina [27]

Answer:

B. She subtracted the end time from the start time and

D. She did not account for a.m. and p.m. in the start and end times.

Step-by-step explanation:

The school started at 8:05 a.m. and ended at 2:40 p.m.

And the length of the school day is calculated by Erica and it is shown in the attached photo.

See the attached photo.

Erica has done two errors which are

B. She subtracted the end time from the start time and

D. She did not account for a.m. and p.m. in the start and end times. (Answer)

7 0

3 years ago

A new aircraft control system is being designed that must be 98.0% reliable. This system consists of two components in series.

sweet [91]

Answer:

98.99%

Step-by-step explanation:

The combined reliability of both components must be 98%. Given that both components must be functional and have the same reliability 'r', the minimum value of 'r' that meets the system requirements is given by:

$0.98 = r^2\\r=0.9899=98.99\%$

The level of reliability required for each component is 98.99%.

6 0

2 years ago

Kent has paid a total of $589 For internet service. Each month of service cost $19. How many months, m, of internet service has

max2010maxim [7]

Answer:

31 months

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

2. For the following, is the stated conclusion reasonable? Why or why not?

lapo4ka [179]

Answer:

Definetely, it is reasonable. You may assume that a pet as a companionship will help the elderly feel more comfortable and therefore, happy. There are a few problems tough:

There is no practical way of meassuring 'happiness'.
Sometimes, the correlations of two factors may be a coincidence. Scientist should always consider this when they try to claim something byusing some backup logic, like we did.
Even tough the statement makes some sense, you need to be aware that maybe is not completly positively correlated. Maybe having 20 more pets does not make an elderly happy if it alredy had 1 or 2.

8 0

3 years ago

a bag contains 5 red 3 green 4 blue and 8 yellow marbles find the probability of randomly selecting a green marble and then a ye

alexira [117]

The probability of picking a green marble the first time is 3/20 and the probability of picking a yellow marble the second time is 8/20.
probabilities are heavily related to percents so it would make sense that the probability of picking a color would be the number of that color divided by the total number.

note that it is really important that the problem said that the marble was replaced. If the marble was not replaced, the probability of picking a yellow marble the second time would be 8/19 if the first marble picked was not a yellow one.

I hope this helps.

5 0

3 years ago