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
wel
3 years ago
15

HELP What is the approximate volume of a cone with a height of 12 in. And a radius of 9in.?

Mathematics
1 answer:
Lunna [17]3 years ago
6 0
SURFACE \: \: AREA \: \: AND \: \: VOLUMES \\ \\ \\\\Volume \: \: of \: \: cone \: \: = \: \: \frac{1}{3} \pi {r}^{2} h \\ \\ \\ We \: are \: given \: that \: \: - \: \: \: \\ \: \: \\ \: Radius \: = \: 9 \: \: in. \\ \\ \: Height \: = \: 12 \: \: in. \\ \\ \: \: \: \pi \: = \: 3.14 \\ \\ Volume \: \:of \: \: Cone \: \: = \: \: \frac{1}{3} \times 3.14 \times 9 \times 9 \times 12 \\ \\ \\ Volume \: \: of \: \: Cone \: \: = \: \: 1017.36 \: {in.}^{3}
You might be interested in
What is the surface area if this sphere?
Darya [45]
I think the answer is 126.6466666666667but rounded be 126.65
8 0
3 years ago
Read 2 more answers
2/9 of the members are boys in a community service club. if there are 95 more girls than boys, how many girls are there in club?
Talja [164]

Answer:

There are 171 members in the club

Number of boys = 38

Number of girls = 133

Step-by-step explanation:

Let

x = total members of the club

Boys = 2/9x

if there are 95 more girls than boys

Girls = 2/9x + 95

how many girls are there in club?

Total members in the club = boys + girls

x = 2/9x + 2/9x + 95

x = 2+2/9x + 95

x = 4/9x + 95

x - 4/9x = 95

9x-4x/9 = 95

5/9x = 95

Divide both sides by 5/9

x = 95 ÷ 5/9

= 95 × 9/5

= 855/5

= 171

boys = 2/9x

= 2/9 * 171

= 342 / 9

= 38

Girls = 2/9x + 95

= 38 + 95

= 133

Total = 38 + 133

= 171

There are 171 members in the club

Number of boys = 38

Number of girls = 133

5 0
3 years ago
Write the expression 5x+2x^2-7+2x^3
avanturin [10]

2x^3+2x^2+5x-7, That would be the answer.

3 0
3 years ago
Is –22 + 9 positive or negative?
12345 [234]
Negative since the answer would be -13
7 0
3 years ago
Read 2 more answers
Please help, nobody is helping I need to find surface area
Reil [10]

Answer:

A) 147.6 sq m

Step-by-step explanation:

Separate the pyramided out into 4 triangles and add those

3 of them (sides) will be the same

A=h\frac{b}{2} \\A=10\frac{4}{2} \\A=20

This is one half of the side, multiply by 2 to get the area of the entire side, 40 square m.

The area of all 3 sides together is 40*3 = 120 sq m

For your base, your height will be 6.9 and your base is 4

A = 13.8  sq m

multiply by 2 again for the entire base

A=27.6 sq m

Now add both

120 + 27.6

3 0
3 years ago
Other questions:
  • when 20 is added to 7 times the number x, the result is -1. What number results when 2 times x is subtracted from 5?
    5·2 answers
  • Write the following comparison as a ratio reduced to lowest terms. 36 nickels to 30 dimes
    10·2 answers
  • Which is the BEST estimation of 9
    15·2 answers
  • Heather has a bag of 15 red, 11 orange, 9 yellow, 12 green, 6 blue and 11 purple markers. how many times would you expect heathe
    8·1 answer
  • A woman who is 6ft tall is standing next to a flagpole. The shadow of the woman is 3.5ft and the shadow of the flagpole is 17.5f
    7·2 answers
  • Anyone know how to do this...
    5·1 answer
  • The sum of eight and twice a number is 42
    11·1 answer
  • The difference of a number and its successor
    10·1 answer
  • Helpp plss this needs to be done before 11:59 I’ll do anything for you just helpp
    8·2 answers
  • HEY YOU, PLS HELP ME!!!!<br><br> Determine the arc of AB. Give your answer to two decimal places.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!