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White raven [17]
4 years ago
5

What’s the volume of the cone

Mathematics
1 answer:
Likurg_2 [28]4 years ago
3 0

Answer:

The volume of cone can be:

V = 216\pi

    or

V \approx 678.584

Step-by-step explanation:

-Use the formula to find the volume of a cone:

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

-Use both the radius and the height for the formula:

V = \frac{1}{3} \pi 6^218

-Then, you solve:

V = \frac{1}{3} \pi 6^218

V = \frac{1}{3} \times \pi \times 6^2 \times 18

V = \frac{1}{3} \times \pi \times 36 \times 18

V = \frac{1}{3} \times \pi \times 648

V = \frac{1}{3}\pi \times 648

V = \frac{648}{3} \pi

V = 216\pi \approx 678.584

So, the answer can be 216\pi or 678.584 .

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URGENT PLEASE HELP!!!!!
telo118 [61]

(1)

we are given

\frac{y}{6} =x

we can  find for y

multiply both sides by 6

\frac{y}{6}*6 =6*x

y=6x

we can see that y is directly proportional to x

so, option-D........Answer

(2)

y varies inversely with x

so, we can write it as

y=k\frac{1}{x}

now, we are given

y=5 when x=2.5

so, we can plug it here

5=k\frac{1}{2.5}

and then we can solve for k

5*2.5=2.5*k\frac{1}{2.5}

k=12.5

now, we can plug back

y=\frac{12.5}{x}

we can plug x=20

y=\frac{12.5}{20}

y=0.625.............Answer

(3)

we are given

The current, I, in a circuit varies inversely with the resistance, R

so, we can write it as

I=\frac{k}{R}

we have R=12 when I=3

so, we can plug it

3=\frac{k}{12}

now, we can solve for k

3*12=12*\frac{k}{12}

k=36

now, we can plug back

I=\frac{36}{R}

we can plug R=6

I=\frac{36}{6}

I=6................Answer


6 0
3 years ago
Jana knows that in ∆LET and ∆PVC, ET ≅ VC, ∠L ≅ ∠P and ∠E ≅ ∠V. Which congruence postulate or theorem can be used to prove that
LiRa [457]

Answer:

SAA theorem

Step-by-step explanation:

The given data with regards to ΔLET and ΔPVC are;

ET ≅ VC

∠L ≅ ∠P

∠E ≅ ∠V

From the given relationship, we have that two angles and the adjacent (nonincluded) side to the two angles in ΔLET are congruent to the corresponding two angles and adjacent (nonincluded) side of ΔPVC

Therefore, the congruence theorem that can be used to prove that the two triangles are congruent is the Side-Angle-Angle (SAA) congruency theorem

The SAA congruency theorem states that, two triangles that have two angles and a nonincluded side on one triangle being congruent to the corresponding two angles and a non included side on the other triangle, then the two triangles are congruent.

7 0
3 years ago
PLEASE HELP ASAP!!!!!!!!
Ne4ueva [31]

Answer:

The first 5 terms are;

-2, 2, 13,38 and 91

Step-by-step explanation:

Here, we want to write the first 5 terms of the sequence.

We already have the first term as 1

Now, we need the 2nd term

Putting two in place of n, we have ;

2f(1) + 3n

= 2(-2) + 3(2) = -4 + 6 = 2

For the 3rd term, put 3 in place of n

2f(2) + 3(3)

sine f(2) = 2, we have

2(2) + 9 = 4+ 9 = 13

For the fourth term, put 4 in place of n, we have

2f(3) + 3(4)

since f(3) = 13

we have; 2(13) + 12 = 26 + 12 = 38

For the 5th term, put 5 in place of n, we have

2f(4) + 3(5)

since f(4) = 38, we have

2(38) + 15 = 76 + 15 = 91

6 0
3 years ago
A tv cost £800 plus VAT at 20% what is the total cost of the tv?
Bad White [126]

Answer:

Given:

Cost = £ 800

Tax = 20%

To find:

The total cost

Solution:

Total cost = Cost + Tax

Tax = 20 % of cost

20 / 100 * 800

Tax = £ 160

Hence,

Total cost =  £ 800 + £ 160

Total cost = £ 960

7 0
3 years ago
Find a,b,and c for the answer
Svetach [21]
Alright give me a second ok
3 0
3 years ago
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