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Margaret [11]
3 years ago
9

What is the approximate volume of the cone below?

Mathematics
1 answer:
diamong [38]3 years ago
3 0
<h3>Answer:  Choice C</h3>

2,094 cm^3

==========================================================

Explanation:

The diameter of 20 cm divides in half to the radius r = 10 cm.

The height is h = 20 cm.

V = volume of the cone

V = (1/3)*pi*r^2*h

V = (1/3)*pi*10^2*20

V = 2,094.3951023932 is approximate

I used my calculator's stored version of pi when computing the volume

That value then rounds to 2,094 cm^3 when rounding to the nearest whole number.

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a number has seven digits. all the digits are 6 except the hundred-thousands' digit, which is 2, and the thousands' digit, which
klio [65]

Answer:

264,666.

Step-by-step explanation:

We have been given that a number has seven digits.

All digits are 6 except the hundred-thousands' digit.

Hundred thousands: 100,000.

The hundred thousand's digit is 2, so its value would be 200,000.

We have been given that thousands's digit is 4, so its value would be:

4 thousands: 4,000

The number with given hundred thousand's and thousands's digit would be 204,000.

Since all digits are 6 except the hundred-thousands' digit, therefore, our number would be 264,666.

6 0
3 years ago
Complete the coordinate proof of the theorem.
mojhsa [17]
C(a,b), because the x-coordinate( first coordinate) is a (seeing as it is situated directly above point B, which also has an x-coordinate of a) and the y-coordinate ( second coordinate) is b (seeing as it is situated on the same horizontal level as point D, which also has a y-coordinate of b)

the length of AC can be calculated with the theorem of Pythagoras:

length AB = a - 0 = a
length BC = b - 0 = b

seeing as the length of AC is the longest, it can be calculated by the following formula:

It is called "Pythagoras' Theorem" and can be written in one short equation:

a^2 + b^2 = c^2 (^ means to the power of by the way)

in this case, A and B are lengths AB and BC, so lenght AC can be calculated as the following:

a^2 + b^2 = (length AC)^2
length AC = √(a^2 + b^2)

Extra information: Seeing as the shape of the drawn lines is a rectangle, lines AC and BD have to be the same length, so BD is also √(a^2 + b^2). But that is also stated in the assignment!


3 0
3 years ago
Read 2 more answers
E If M P = Rs 420,SP. 405 then<br>find discount​
Leni [432]

Answer:

discount=MP-SP

=Rs420-Rs405

=Rs15

Step-by-step explanation:

6 0
3 years ago
Hahaha I need help again please
attashe74 [19]
It could be 2+1 beacuse it says there are twice as many
5 0
3 years ago
HELP DUE TONIGHT!!!<br> What is 3% of 90???
natali 33 [55]

Answer:

2.7

Step-by-step explanation:

3% × 90 =

(3 ÷ 100) × 90 =

(3 × 90) ÷ 100 =

270 ÷ 100 =  2.7

8 0
4 years ago
Read 2 more answers
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