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vesna_86 [32]
2 years ago
11

A cube has side length a.The side lengths are decreased to 30% of their original size.Write an expression in simplest form for t

he volume of the cube in terms of a.
Mathematics
1 answer:
jeka942 years ago
5 0

Answer:

Volume V = 0.027a^3

Step-by-step explanation:

Let a represent the length of the side length of the cube.

a.The side lengths are decreased to 30% of their original size;

l = 30% of a

l = 0.3a .....1

The volume of a cube can be expressed as;

V = l × l × l

V = l^3 .......2

Where;

l = side length

Substituting the value of l into equation 2;

V = l^3 = (0.3a)^3

V = 0.027a^3

Volume V = 0.027a^3

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How to find domain and range of a function
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The domain is found depending on the information you're given. In a table, the domain is found by taking all the x values given and listing them least to greatest. Same with ordered pairs. In a graph, the domain is found by first seeing if there are any restrictions and then find the x values that work and have one output.

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Hope this helps!!

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2 years ago
There are two colored marbles and one white marble in a box. Julie mixes the marbles and then Sam draws two marbles at random wi
tino4ka555 [31]
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adding a white marble would change the possibilities to 1/2 and 1/3 consequently, meaning Sam wins in 1/2 * 1/3 = 1/6 = 16.7% cases, which is even less fair.

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6 0
1 year ago
Which of the following expressions is equivalent to the expression 36 + 42?
olga2289 [7]
The answer is 6(6 + 7)
7 0
3 years ago
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What is the actual height of the building shown in the model?
julsineya [31]

Answer:

The actual height is 150ft

Step-by-step explanation:

Given

Width : Height = 2cm : 5cm

Actual\ width = 60ft

Required

Determine the actual height

Substitute 60ft for width in: Width : Height = 2cm : 5cm

60ft:Height =2cm:5cm

Express as fraction

\frac{60ft}{Height} =\frac{2cm}{5cm}

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Make height the subject

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Height = 5 * 30ft

Height = 150ft

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3 years ago
Read 2 more answers
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