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12345 [234]
3 years ago
7

Find the volume of the cone below.

Mathematics
1 answer:
jeka57 [31]3 years ago
5 0

Answer:

V =\frac{1}{3} \pi r^2 h

For this case we know that the radius is r=7cm and the height is h =11cm. And replacing we got:

V=\frac{1}{3} \pi (7cm)^2 (11cm)= \frac{1}{3} \pi (49cm^2) (11 cm)=\frac{539}{3} \pi cm^3

And the best option would be:

V = \frac{539}{3} \pi cm^3

Step-by-step explanation:

For this case we know that the volume of the cone is given by:

V =\frac{1}{3} \pi r^2 h

For this case we know that the radius is r=7cm and the height is h =11cm. And replacing we got:

V=\frac{1}{3} \pi (7cm)^2 (11cm)= \frac{1}{3} \pi (49cm^2) (11 cm)=\frac{539}{3} \pi cm^3

And the best option would be:

V = \frac{539}{3} \pi cm^3

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In the smoky mountains of Tennessee, the percent of moisture that falls as snow rather than rain is approximated by P = 10.0 ln
Mars2501 [29]

Answer:

  A. About 4,900 ft

Step-by-step explanation:

We want h such that ...

  5 = 10·ln(h) -80

  8.5 = ln(h) . . . . . . . add 80, divide by 10

  e^8.5 = h ≈ 4914.8 . . . . take the antilog

  h ≈ 4900 . . . . feet

7 0
3 years ago
Someone please help me I need these answers to be prepared for my test :(
algol [13]
To do these problems, plug in a couple of values into the equations, and see the general shape of the graph. To ensure you were right, check them on an online graphing calculator. I highly recommend Desmos Graphing Calculator. Cheers!
6 0
3 years ago
Read 2 more answers
In a hypothesis test, standard error measures ____.
Lina20 [59]

Answer:

The correct answer is:

the amount of difference expected just by chance (b)

Step-by-step explanation:

Standard error in hypothesis testing is a measure of how accurately a sample distribution represents a distribution by using standard deviation. For example in a population, the sample mean deviates from the actual mean, the mean deviation is the standard error of the mean, showing the amount of difference between the sample mean and the actual mean, occurring just by chance. Mathematically standard error is represented as:

standard error = (mean deviation) ÷ √(sample size).

standard error is inversely proportional to sample size. The larger the sample size, the smaller the standard error, and vice versa.

7 0
3 years ago
Find the lateral surface area of this
Allushta [10]

Answer:226.2

Step-by-step explanation

Lateral= 2πrh

H=12

R=3

2*π*3*12=226.19

Round to nearest 10th is 226.2

6 0
3 years ago
Step 1: A poll of 1500 college students were asked whether or not they had used the Internet to find a place to live sometime wi
trapecia [35]

Answer:

n = 1500

Step-by-step explanation:

The sample size is the number of students  that were asked

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