Mathematics

13 April, 01:19

1. What is the simplified form of each expression?

7x^-8 * 6x^3

a. 42/x^5

b. 1/42x^5

c. 42x^11

d. 13x^-5

(-2x8) · 3y9 · 2x4

a. 3x^12y^9

b. - 12x^72y^9

c. - 12xy^21

d. - 12x^y^9

2. Find the simplified form of the expression. Give your answer in scientific notation.

(8 x 10^7) (7 x 10^4)

a. 1.5 * 10^12

b. 5.6 * 10^12

c. 1.5 x 10^29

d. 5.6 x 10^29

(7 * 10^-4) (9 * 10^-10)

a. 6.3 * 10^-13

b. 63 * 10^-13

c. 6.3 * 10^-15

d. 6.3 * 10^-16

+1

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