Mathematics, 10.05.2021 21:10, BeautyxQueen

HELP ASAP Question 5(Multiple Choice Worth 4 points)
Which expression is equivalent to 73 ⋅ 7−5?

72
77
1 over 7 to the 2nd power
1 over 7 to the 7th power
Question 6 (Essay Worth 5 points)
Part A: Find a rational number that is between 7.7 and 7.9. Explain why it is rational. (2 points)

Part B: Find an irrational number that is between 7.7 and 7.9. Explain why it is irrational. Include the decimal approximation of the irrational number to the nearest hundredth. (3 points)

Question 7 (Essay Worth 5 points)
Reina and Sam are multiplying (84)5 (73)9.

Reina's Work Sam's Work
(84)5 (73)9 = 84 + 573 + 9 = 89712 (84)5 (73)9 = 84⋅573⋅9 = 820727

Is either of them correct? Explain your reasoning.

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FDK451.11

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HELP ASAP Question 5(Multiple Choice Worth 4 points)
Which expression is equivalent to 73 ⋅...