Mathematics, 26.06.2019 02:40 jujulakaeuaws
8! it's timed, i promise it's simple 11. which of the following expressions is true? a. 4^3β’ 4^4 = 412 b. 5^2 β’ 5^3 > 5^5 c. 3^2 β’ 35 < 3^8 d. 5^2 β’ 54 = 58 12. which of the following expressions is true? a.8^3 β’ 8^2 < 8^4 b. 4^4 β’ 4^4 = 4^16 c. 2^2 β’ 2^6 < 2^8 d. 3^3 β’ 3^3 > 3^5 write the value of the expression. 13. 3^4/3^4 a. 3 b. 0 c. 1 d. 4 14. 4^7/4^9 a. β16 b. 1/16 c. 1/8 d. 8 multiply. write the result in scientific notation. 15. (2.3 β’ 10^1)(7 β’ 10^6) a. 1.61 β’ 10^7 b. 1.61 β’ 10^8 c. 9.3 β’ 10^6 d. 9.3 β’ 10^7 16. (1.7 β 10β4)(5 β 10β5) a. 8.5 β 10^β9 b. 8.5 β 10^20 c. 6.7 β 10^β9 d. 6.7 β 10^20 simplify the expression. 17. 7t4 β 7t4 a. 49t^8 b. 14t^4 c. 49t^16 d14t^8 simplify the expression. 18. βx(7x β 8) a. 6x^2 β 9x b. β7x β 8x c. β7x^2 + 8x d. 7x + 8x simplify the expression. 19. 4k2(β3k2 β 4k + 5) a. β12k^4 β 16k^3 + 20k^2 b. 12k^4 β 16k^3 + 9k^2 c. β12k^3 + 20k d. k4 + 9k^2 simplify the expression. 20. (2k + 1) (k β 4) a. 2k^2 β 7k + 4 b. 2k^2 β3k + 4 c. 2k^2 + 9k + 4 d. 2k^2β 7k β 4
Answers: 1
Mathematics, 21.06.2019 20:00
The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?
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Darren earned $663.26 in net pay for working 38 hours. he paid $118.51 in federal and state income taxes, and $64.75 in fica taxes. what was darren's hourly wage? question options: $17.45 $19.16 $20.57 $22.28
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Lines a and b are perpendicular. if the slope of line a is 3, what is the slope of line b?
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8! it's timed, i promise it's simple 11. which of the following expressions is true? a. 4^3β’ 4...
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