Asked by Cody

Use calculator - answer correct to 3 places.

a. 3sqrt17 + 2sqrt15 / 5sqrt7 = 10.644

b. 2sqrt11 - 3sqrt2 + 15sqrt10 + 5sqrt5 = 61.005

c. 4.3sqrt6.9 / 1.7sqrt57 = 50.163

Can someone check my answers? I keep getting the feeling these are not the right answers. Thank you.

Answers

Answered by drwls
a. is wrong. You need parentheses to clarify the numerator of the fraction. Is it 2sqrt15 or (3sqrt17 + 2sqrt15) ?

Both possibilities do not agree with your answer.

b. is correct
c. is wrong. It is clearly less than one.
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