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Mathematics 82 Online
OpenStudy (anonymous):

Can someone check my answers? 1. Simplify the sum or difference. sqrt 5 + 6 sqrt 5 A) 6 sqrt 5 B) 30 C) 6 sqrt 10 D) 7 sqrt 5 2. Simplify the sum or difference. 4 sqrt 2 - 7 sqrt 2 A) negative sqrt 6 B) -3 sqrt 2 C) -11 sqrt 2 D) 11 sqrt 2 3. Simplify the sum or difference. 3 sqrt 7 - sqrt 63 A) -2 sqrt 7 B) -6 sqrt 7 C) -4 sqrt 3 D) 0 4. Simplify the sum or difference. -6 sqrt 10 + 5 sqrt 90 A) 9 sqrt 10 B) -9 sqrt 10 C) -39 sqrt 10 D) -10 5. Simplify the product. sqrt 6 (sqrt 2 + sqrt 3) A) sqrt 8 + 3 B) sqrt 30 C) 2 sqrt 3 + 3 sqrt 2 D) 4 sqrt 2 + 3

OpenStudy (anonymous):

1. A 2. C 3. D 4. B 5. B

OpenStudy (anonymous):

6. Simplify the product. 3 sqrt 7 (1 - sqrt 7) A) 3 sqrt 7 - 21 B) 3 C) 7 D) 2 sqrt 7 7. Simplify the product. (sqrt 6 + sqrt 3) (sqrt 2 - 2) A) 2 sqrt 3 - sqrt 6 B) -3 sqrt 6 C) 0 D) negative sqrt 6 8. Simplify the quotient. 3/sqrt 7 - sqrt 3 A) sqrt 3 / 12 sqrt 7 + 4 sqrt 3 B) 3 sqrt 7 + 3 sqrt 3 / 4 C) 3 sqrt 7 - 3 sqrt 3 / 4 D) 3/4 9. Simplify the expression. (sqrt 3 + sqrt 5^2) A) sqrt 6 + sqrt 30 + sqrt 10 B) 8 C) 8 + 2 sqrt 15 D) 16

OpenStudy (anonymous):

6. B 7. C 8. A 9. C

OpenStudy (welshfella):

treat the radical as a variable so for the first question its comparable with x + 6x = 7x

OpenStudy (matthew120):

@stuck-help

OpenStudy (jacobciezki):

ill try

OpenStudy (jacobciezki):

i really dont know this :(

OpenStudy (matthew120):

id say you got a 80

OpenStudy (matthew120):

babe

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