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kondaur [170]
3 years ago
14

The volume of 2 spheres have a ratio of 27:125. what is the ratio of their areas

Mathematics
1 answer:
choli [55]3 years ago
3 0

Answer:

the ratio is 9: 25

Step by step calculation:

\sqrt[3]{125}  = 5 \\ 5 {}^{2}  = 25 \\  \sqrt[3]{27}  = 3 \\ 3 {}^{2 }  = 9 \\

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An experiment consists of rolling two fair number cubes. What is the probability that the sum of the two numbers will be >3
liraira [26]

Answer:   \bold{\dfrac{5}{12}}

<u>Step-by-step explanation:</u>

greater than 3 means the sum is either 4, 5, or 6.

There are 15 permutations that meet the criteria:

(1, 3), (1, 4), (1, 5), (1,6)

(2, 2), (2, 3), (2, 4), (2, 5), (2,6)

(3, 1), (3, 2), (3, 3), (3, 4), (3, 5), (3,6)

(4, 1), (4, 2), (4, 3), (4, 4), (4, 5), (4,6)

(5, 1), (5, 2), (5, 3), (5, 4), (5, 5), (5,6)

(6, 1), (6, 2), (6, 3), (6, 4), (6, 5), (6,6)

There are 6²= 36 total permutations for 2 dice.

Probability=\dfrac{\#\ of\ permutations> 3}{total\ \#\ of\ permutations}\\\\.\qquad \qquad =\dfrac{15}{36}\\\\.\qquad \qquad =\dfrac{5}{12}\\\\

3 0
3 years ago
Which of the following expressions is equivalent to 1/3^-3?
sweet [91]
I believe B . Because it seems equivalent
8 0
3 years ago
Leyla drops a penny from a height of 150 m.
gizmo_the_mogwai [7]
When the penny hits the ground, h will = 0.

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Then 4.9t^2 = 150, and so t^2 = sqrt(150 / 4.9)   =    plus or minus 5.53 sec.

We can use only the positive root, as we're measuring time.

t = 5.5 sec (answer)
8 0
3 years ago
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Answer:

using the (pi) which is the formula

8 0
2 years ago
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I need help with this problem and show your work plz thanks
coldgirl [10]
Well is just their sum, thus

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5 0
3 years ago
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