Answer: 72
Step-by-step explanation:
From the question, we are informed that a disc jockey can play 7 records and that there are 9 records to select from for a particular segment of a radio show.
The number of ways that the program for the segment be arranged will be:
= 9! / 7!
= (9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1) / (7 × 6 × 5 × 4 × 3 × 2 × 1)
= 9 × 8
= 72
New length = 3.5 x 8 = 28 cm
New width = 3.5 x 6 = 21 cm
Perimeter = 2(28) + 2(21) = 56 + 42 = 98 cm
Area = 28 x 21 = 588 square cm
This equation has no solution.
This is fraction multiplication. We need to find 1/5 of 2/3 of the cake.
Multiply numerator by numerator, and denominator by denominator:
1/5 x 2/3 =
(1x2)/(5x3) =
2/15
The answer is A. 2/15
