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3 years ago

If h = 21 units and r = 7 units, what is the volume of the cone shown above?

Mathematics

2 answers:

Kamila [148]3 years ago

7 0

Answer:

Option B. 1077.02 cubic units

Step-by-step explanation:

As we know the formula of cone is $V = \frac{1}{3}\pi r^{2}h$

In the given question given dimensions are h = 21 units and r = 7 units.

Therefore we can calculate the volume of the cone with the given dimensions.

$V = \frac{1}{3}\pi(7)^{2}(21)$

$V=\frac{1}{3}(3.14)(49)(21)$

V = 3.14×49×7 = 1077.02 cubic unit

So the volume of the given cone is 1077.02 cubic units

salantis [7]3 years ago

3 0

your answer should be D because you have to multiply 3.14 times 21 times 7 to get 461.58

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3 years ago

Michaela is planning a pizza party for 48 people. she has $200 to buy pizza and soda for the party. Each 12-pack of soda can cos

Dominik [7]

The answer to this question would be: D. <span>200>6P(8.00)+4S(5.00)
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Then, number the pizza she needs:
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7 0

3 years ago

Read 2 more answers

Express the -0.345 in the form of p\q and reduce it to the lowest term

Mamont248 [21]

Answer:

-69/200

Step-by-step explanation:

-0.345 is in decimal form.

In Fractional form (p/q)

=-345/1000

To simplify, divide the numerator and the denominator by the G.C.D(Greatest Common Divisor) of p and q.

In this case,G.C.D of 345 and 1000 is 5.

Simplified form=-69/200 [ANS]

3 0

3 years ago

ms rodriguez has 24 students in her class room. 10 of the students are boys. Jeff claims that the ratio of boys to girls must be

nignag [31]

Answer:

The answer instead is 10:14.

Step-by-step explanation:

In this case, there are ten boys and fourteen girls in this class. The ration would then be 10:14. Instead, Jeff said 5:12 which isn't correct. He can correct it by using the number of boys given, find the difference of girls in a class of twenty-four students, and then get his answer!

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1 year ago

How do i express x^2-3x into the form of (x-m)^2+n. I will give brainliest to correct answer

mel-nik [20]

Step-by-step explanation:

let's simply do the multiplications and then compare with the original.

(x-m)² + n

right ?

or is it

${(x - m)}^{2 + n}$

let's go for the first.

x² - 2mx + m² + n = x² - 3x

-2mx + m² + n = -3x

fun there we see two things :

-2m = -3

m = 3/2

and

m² + n = 0

(3/2)² = -n

9/4 = -n

n = -9/4

so our transformed expression looks like

(x - 3/2)² - 9/4

7 0

2 years ago