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2 years ago

If two cylinders are similar and the ratio between the altitude lengths is 2:3, what is the ratio of their volumes

1 answer:

8 0

Given:

ratio of altitude height = 2/3

Required:

ratio of volume

Solution:

Assuming that the only difference that the cylinders has is the height, we can solve for the ratio of the volume.

The volume of a cylinder is equal to πr²×height.

ratio of volume = πr²×2/πr²×3

We cancel the pi and the r² since we assume that the cylinders have the same radius.By cancelling, we are left with:

ratio of volume = 2/3

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If a coin is flipped twenty-five times and lands tails up seventeen times, the experimental probability that the coin lands tail

aliina [53]

Tails was landed 17/25 times, so the experimental probability would be .68 or 68%
17/25 = .68
Hope this helps!

5 0

3 years ago

1 fourth to the 3rd power as a fraction

lukranit [14]

1/64 is the answer as a fraction

7 0

2 years ago

Read 2 more answers

Good afternoon!

Vladimir [108]

9514 1404 393

Answer:

5) 112°

6) 40°

Step-by-step explanation:

5) The angle E or ? is half the sum of the intercepted arcs:

? = (130° +94°)/2 = 112°

6) The angle D is half the difference of the intercepted arcs:

? = (135° -55°)/2 = 40°

8 0

2 years ago

F (x) = -4x + 4 f(2)=

sp2606 [1]

Substitute x = 2 as we get

f(2) = -4(2)+4 = -8+4 = -4

Therefore, f(2) = -4

7 0

3 years ago

Let E = {(x, y) e R2|xy > 0}. Determine whether E is a subspace of R2 . X3

gayaneshka [121]

Answer:

E is not a subspace of $\mathbb{R}^2$

Step-by-step explanation:

E is not a subspace of $\mathbb{R}^2$

In order to see this, we must find two points (a,b), (c,d) in E such that (a,b) + (c,d) is not in E.

Consider

(a,b) = (1,1)

(c,d) = (-1,-1)

It is easy to see that both (a,b) and (c,d) are in E since 1*1>0 and (1-)*(-1)>0.

But (a,b) + (c,d) = (1-1, 1-1) = (0,0)

and (0,0) is not in E.

By the way, it can be proved that in any vector space all sub spaces must have the vector zero.

5 0

3 years ago