Accepted Answer

Chapter 10 Quiz:

1) 3

2) 5|x|

Use the "absolute value" template to enter the absolute value of x.

3) 216

4) 2a sqrt[3b]

5) 9 a^9 b^4 sqrt[21ab]

The spacing above is used here solely for your reading clarity. Do not use extra spaces when you enter your answer.

6) 45sqrt[5]

7) -30 + 8sqrt[5]

8) 95sqrt[5]

9) "A"

10) 260

11) 80

12) (3 - x)cbrt[3x]

To enter the cube root of 3x, select the two-box "racical" template. Into the small box on the left, enter "3"; into the big box, enter the 3x.

13) 9

14) -4

15) 4

16) 80

17) 51 + sqrt[5]

18) 8

19) 6/5

20) 7^(5/21)

Enter the 7, and select the "to the power of" template. Inside the box, select the "fraction" template, and enter the fractional power.

21) 6cbrt[6]

To enter the cube root of six, select the two-box "radical" template. Into the small box on the left, enter "3"; into the big box, enter the 6.

22) (xy^2z)^(1/3)

The above is what I believe is the form of the answer they're expecting. However, they might want the power carried through, as:

x^(1/3) y^(2/3) z^(1/3)

I don't expect so, though....

23) 31

24) 7th-rt[a^3]

The instructions don't say whether you can assume "a" to be non-negative. Technically, there should be absolute-value bars on the a^3, but I don't think they're expecting that.

To enter the seventh root, select the two-box "radical" template. Into the small box on the left, enter "7"; into the other box, enter the a^3 (or |a^3|).

And that completes both assessments.

Expert:	Elizabeth
Pos. Feedback:	99.6 %
Accepts:
Answered:	7/21/2009

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teaching and tutoring math at the high-school and college levels