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Mathematics 13 Online
OpenStudy (anonymous):

9. 100^12/100^8 a. 100 ^ 12/8 b. 100^96 c. 100^4 d.100^20 10. x^11/ x^4 a. x^7 b. x^15 c. x^44 d. x^11/14 for questions 13 and 14, write the value of the expression 13. 2^3/2^3 14. 3^3/3^6 for questons 17-21 simplify the expression 17. 8t^5x8t^5 18. -x(5x-4) 19. 3k^2(-2k^2-4k-7) 20. (2k+1) (k-4) 21.(-y+4)(2y-1)

OpenStudy (anonymous):

What did you get for 9?

OpenStudy (anonymous):

With exponents, division is the same as subtraction

OpenStudy (anonymous):

9 i got b

OpenStudy (anonymous):

That's not right

OpenStudy (anonymous):

100^12 / 100^8 is the same as 100^(12-8)

OpenStudy (anonymous):

ohhhhhh gotcha so 100^4

OpenStudy (anonymous):

so 10 is x^7

OpenStudy (anonymous):

correct

OpenStudy (anonymous):

thank you so much if you could help me with anything else that would be awesome

OpenStudy (anonymous):

what did you get for the others?

OpenStudy (anonymous):

13. 1 14. 1/27 17. 64t^10 18. -5x^2+4x 19. -6k^4-12k^3+21k^2

OpenStudy (anonymous):

20. 2k^2-7k-4 21. -2y^2+9y-4

OpenStudy (anonymous):

19 is wrong

OpenStudy (anonymous):

is it -6k^4-12k^3+10k^2 ?

OpenStudy (anonymous):

your last term is wrong

OpenStudy (anonymous):

what is 3k^2 times -7

OpenStudy (anonymous):

-21k^2 ?

OpenStudy (anonymous):

correct, so what is the answer

OpenStudy (anonymous):

my test that it is on doesnt have an answer with -21k^2 in it

OpenStudy (anonymous):

is 3k^2(-2k^2-4k-7) a typo then?

OpenStudy (anonymous):

OpenStudy (anonymous):

ohhh its supposed to be +7 not -7, My bad

OpenStudy (anonymous):

thank you so much for your help it means a lot! :)

OpenStudy (anonymous):

ok, good job you got them all right :D

OpenStudy (anonymous):

thanks!!!! :))))

OpenStudy (anonymous):

np

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