Pre algebra

Question 1 (Multiple Choice Worth 1 points)

(01.01 MC)

Which decimal number best describes the fraction fraction 137 over 6?

*** A repeating decimal 22.83 with a bar over 3
A terminating decimal 22.83
A repeating decimal 22.82 with a bar over 2
A terminating decimal 22.82

Question 2 (Multiple Choice Worth 1 points)

(01.07 MC)

The amounts of household waste generated in a region during two years were 23,400,000 tons and 48,100,000 tons. What was the total household waste generated over these two years in the region, expressed in scientific notation?

***7.15 ⋅ 107 tons
7.15 ⋅ 1014 tons
71.5 ⋅ 107 tons
71.5 ⋅ 1014 tons

Question 3 (Multiple Choice Worth 1 points)

(01.03 MC)

Which expression is equivalent to 54 ⋅ 5–6?

5–10
56
***fraction 1 over 5 to the power 2
fraction 1 over 5 to the power negative10

Question 4 (Multiple Choice Worth 1 points)

(01.01 LC)

Which of the following is a rational number?

square root of 79, square root of 80, square root of 81, square root of 82

***square root of 79
square root of 80
square root of 81
square root of 82

Question 5 (Multiple Choice Worth 1 points)

(01.02 LC)

There are (37)2 ⋅ 30 cherries on a farm. What is the total number of cherries on the farm?

35
39
***314
349

Can anyone check these for me please?

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  1. Ms.Sue may you check my answers?

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  2. 01.01 ok
    01.07 ok
    01.03 ok
    The usual online notation for exponents is ^
    5^4 * 5^-6 = 5^-2 = 1/5^2

    all those words are just irritating

    01.01 Nope. √81 = 9

    01.02 ??
    37^2 * 30 = 41070
    (37)2 * 30 = 37*2*30 = 2220
    Now sure how you get 314. Maybe your notation is obscuring the problem.

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  3. The 314 is 3 and the exponent is 14

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