1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
RoseWind [281]
2 years ago
11

Please answer correctly! I will mark you as Brainliest! The pictures go together!

Mathematics
1 answer:
nordsb [41]2 years ago
5 0

21×pi

Step-by-step explanation:

Volume of Cone = 1/3×pi×r^2×h

1/3 × pi × (3)^2 × 7

=65.97 in^3 and in terms of pi, 21pi

You might be interested in
For Each Data Set, Determine the median, the first and third Quartiles, and the interquartile Range.
stiks02 [169]
1. First of all arrange the data set in either ascending or descending order.
12, 19, 24, 26, 31, 38, 53.  N = 7 (number of data items)
Median position = 1/2(N + 1)th item = 1/2(7 + 1)th item = 1/2(8)th item = 4th item = 26
First quatile = 1/4(N + 1)th item = 1/4(7 + 1)th item = 1/4(8)th item = 2nd item = 19
Third quatile = 3/4(N + 1)th item = 3/4(7 + 1)th item = 3/4(8)th item = 6th item = 38
Interquatile range = Third quartile - first quatile = 38 - 19 = 19
5 0
2 years ago
Please help, will give brainlist
yulyashka [42]

Answer:

VERTICAL

Step-by-step explanation:

6 0
2 years ago
What is the Anwser if a divide 33 into 2 groups so the ratio is 4 to 7
Naddika [18.5K]
You have to solve this algebraicly.
To do this set up the proportion and add x to each term.
You get 4x and 7x
Set this equal to 33
4x+7x=33
Combine like terms and get 11x=33
Divide by 11
x=3
Now go back to 4x and 7x
Multiply them by x and get 12(4×3=12) and 21(7×3=21)
One group is 12 and the other is 21.
7 0
2 years ago
HELP FAST ITS TO RPROVE MY TEACHER WRONG
OlgaM077 [116]

Answer

use goo    gle

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Unoccupied seats on flights cause airlines to lose revenue. Suppose a large airline wants to estimate its average number of unoc
Bingel [31]

Answer:

We need a sample size of at least 719

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.95}{2} = 0.025

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.025 = 0.975, so z = 1.96

Now, find the margin of error M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

How large a sample size is required to vary population mean within 0.30 seat of the sample mean with 95% confidence interval?

This is at least n, in which n is found when M = 0.3, \sigma = 4.103. So

M = z*\frac{\sigma}{\sqrt{n}}

0.3 = 1.96*\frac{4.103}{\sqrt{n}}

0.3\sqrt{n} = 1.96*4.103

\sqrt{n} = \frac{1.96*4.103}{0.3}

(\sqrt{n})^{2} = (\frac{1.96*4.103}{0.3})^{2}

n = 718.57

Rouding up

We need a sample size of at least 719

6 0
2 years ago
Other questions:
  • 10^-2 x 6^-2 please help
    13·1 answer
  • A birthday cake was cut into equal pieces, and nine pieces were eaten. The fraction below shows how many pieces are left. Accord
    6·1 answer
  • How to solve 12x=-24
    5·2 answers
  • Use the figure to complete the sentence.
    5·1 answer
  • Help please thank you!
    11·1 answer
  • Mom used 1/2 package of pepperoni putting an equal amount on each of the three pizza she made what fration of the package of pep
    8·1 answer
  • 3. line has undefined slope and passes through (1,8)
    15·1 answer
  • SOMEONE PLEASE HELP ME SOLVE THIS PLEASE PLEASE PLEASE
    11·2 answers
  • Journal Write a subtraction problem involving
    6·1 answer
  • Find the length x.<br> 2<br> 4<br> 5<br> X
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!