Explanation

1, 8, 27, 64, 125, 216, 343, and 512

1^3 = 1

2^3 = 8

3^3 = 27

4^3 = 64

5^3 = 125

6^3 = 216

7^3 = 343

8^3 = 512

Explanation

Blouse, Skirt, and Coat are all types of clothing worn on the upper or lower body.

Slipper is footwear, making it the odd one out.

Explanation

To divide -63 by -7:

[-63] ÷ (-7) = 9

Explanation

The opposite of an integer is its additive inverse.

The opposite of -21 is +21.

Explanation

To write 50700 in scientific notation, move the decimal point to the left until you have a number between 1 and 10:

50700 → 5.07 × 10⁴

Explanation

To find the percentage that 3% is of 5%, divide 3% by 5% and multiply by 100:

(3/5) × 100

= 0.6 × 100

= 60%

Explanation

If A is a subset of B (A ⊂ B), then every subset of A is also a subset of B.

This means the power set of A (P(A)) is a subset of the power set of B (P(B)).

Explanation

13/20 - 7/20 = (13 - 7)/20 = 6/20

Simplifying 6/20 by dividing both numerator and denominator by 2:

6/20 = 3/10.

Explanation

The reciprocal of a number x is 1/x.

0 has no reciprocal because 1/0 is undefined.

Explanation

√-1 is represented as "i" (the imaginary unit) in complex numbers.

√-1 × √-1 = i × i = i².

By definition, i² = -1.