I need the SHOWN WORK for all 3 of these ❤️❤️❤️

Mathematics

1 answer:

Arturiano [62]2 years ago

4 0

Answer:

1. 117 sq. in.

2. 168 sq. in.

3. 99 sq. in.

Step-by-step explanation:

1. base x height = area

13 x 9 = 117 sq. in.

2. 1/2 x height x (base + base)

1/2 x 14 x (15 + 9)

1/2 x 14 x 24

Multiply 1/2 by 14 to get 7

7 x 24 = 168 sq in.

3. 1/2 d x d

1/2 x 18 x 11

Multiply 1/2 by 18 to get 9

9 x 11

Multiply 9 x 11 to get 99

9 x 11 = 99 sq. in.

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Assuming that every actor can play each of the 4 roles and that each role is different, the number of possible casts including at least one of sir Ian and Patrick is given by the total number of possible casts (permutation of 4 out of 12 actors), minus the number of casts without sir Ian and Patrick (permutation of 4 out of 10 actors):

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