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2 years ago

What is the expanded form of (a + b)^2?

Mathematics

1 answer:

Archy [21]2 years ago

4 0

Answer:

${a}^{2} + 2ab + {b}^{2}$

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Which volume could belong to a cube with a side length that is an integer? Recall the formula Cube volume = s cubed. 18 cubic in

irina1246 [14]

We have been given 4 choices. We are asked to choose the volume that could belong to a cube with a side length that is an integer.

We know that volume of a cube is cube of each side length.

To solve our given problem, we will take cube root of each given value. The cube root of which value will be an integer that will be our correct choice.

A. $s^3=18$

$\sqrt[3]{s^3}=\sqrt[3]{18}$

$s=2.62074$

Since cube root of 18 is not an integer, therefore, 18 is not a correct choice.

B. $s^3=36$

$\sqrt[3]{s^3}=\sqrt[3]{36}$

$s=3.301927$

Since cube root of 36 is not an integer, therefore, 36 is not a correct choice.

C. $s^3=64$

$\sqrt[3]{s^3}=\sqrt[3]{64}$

$s=4$

Since cube root of 64 is 4 and 4 is an integer, therefore, 64 is the correct choice.

D. $s^3=100$

$\sqrt[3]{s^3}=\sqrt[3]{100}$

$s=4.641588$

Since cube root of 100 is not an integer, therefore, 100 is not a correct choice.

5 0

2 years ago

Read 2 more answers

The diameter of a circle is 10 meters. What is the area of the circle? (Use 3.14 for Pi and round to the nearest tenth.

poizon [28]

The answer is 78.5 you can get this by multiplying pi by the radius which is 5 then square it and you get 78.5

5 0

3 years ago

Read 2 more answers

These base-10 blocks model 68.

Rina8888 [55]

Answer:

68 ÷ 7 = 9.714

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7 0

2 years ago

What is the surface area of a cuboid with length 5cm, width 3cm and height 6cm.

zavuch27 [327]

Answer:

126

Step-by-step explanation:

(2*5*3)+(2*6*3)+(2*6*5)

7 0

2 years ago

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While walking in her neighborhood, Ashley found 3 dimes and 4 pennies on the ground. What percent of a dollar did Ashley find?

faltersainse [42]

Answer:

34%

Step-by-step explanation:

Dime = 10 cents, 10% of a dollar

Penny = 1 cent, 1% of a dollar

3 dimes = 30% of a dollar

4 pennies = 4% of a dollar

30% + 4% = 34%

3 0

3 years ago