Mathematics

Mathematics, 09.07.2019 15:00, bdjdbjdjid200

Simplify the expression. write the answer using scientific notation. (2 × 10^13)^-2 a.-4×10^-26 b.0.25 ×10^-26 c.2.5×10^-27 d.2.5×10^-26

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Mathematics, 26.06.2019 02:20, Ashley606hernandez

40 ! if your guessing orrandom words i will report and get my points back it's timed, i promise it's simple 11. which of the following expressions is true? a. 4^3• 4^4 = 412 b. 5^2 • 5^3 > 5^5 c. 3^2 • 35 < 3^8 d. 5^2 • 54 = 58 12. which of the following expressions is true? a.8^3 • 8^2 < 8^4 b. 4^4 • 4^4 = 4^16 c. 2^2 • 2^6 < 2^8 d. 3^3 • 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. –16 b. 1/16 c. 1/8 d. 8 multiply. write the result in scientific notation. 15. (2.3 • 10^1)(7 • 10^6) a. 1.61 • 10^7 b. 1.61 • 10^8 c. 9.3 • 10^6 d. 9.3 • 10^7 16. (1.7 ∙ 10–4)(5 ∙ 10–5) a. 8.5 ∙ 10^–9 b. 8.5 ∙ 10^20 c. 6.7 ∙ 10^–9 d. 6.7 ∙ 10^20 simplify the expression. 17. 7t4 ∙ 7t4 a. 49t^8 b. 14t^4 c. 49t^16 d14t^8 simplify the expression. 18. –x(7x – 8) a. 6x^2 – 9x b. –7x – 8x c. –7x^2 + 8x d. 7x + 8x simplify the expression. 19. 4k2(–3k2 – 4k + 5) a. –12k^4 – 16k^3 + 20k^2 b. 12k^4 – 16k^3 + 9k^2 c. –12k^3 + 20k d. k4 + 9k^2 simplify the expression. 20. (2k + 1) (k – 4) a. 2k^2 – 7k + 4 b. 2k^2 –3k + 4 c. 2k^2 + 9k + 4 d. 2k^2– 7k – 4

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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. 4^3• 4^4 = 412 b. 5^2 • 5^3 > 5^5 c. 3^2 • 35 < 3^8 d. 5^2 • 54 = 58 12. which of the following expressions is true? a.8^3 • 8^2 < 8^4 b. 4^4 • 4^4 = 4^16 c. 2^2 • 2^6 < 2^8 d. 3^3 • 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. –16 b. 1/16 c. 1/8 d. 8 multiply. write the result in scientific notation. 15. (2.3 • 10^1)(7 • 10^6) a. 1.61 • 10^7 b. 1.61 • 10^8 c. 9.3 • 10^6 d. 9.3 • 10^7 16. (1.7 ∙ 10–4)(5 ∙ 10–5) a. 8.5 ∙ 10^–9 b. 8.5 ∙ 10^20 c. 6.7 ∙ 10^–9 d. 6.7 ∙ 10^20 simplify the expression. 17. 7t4 ∙ 7t4 a. 49t^8 b. 14t^4 c. 49t^16 d14t^8 simplify the expression. 18. –x(7x – 8) a. 6x^2 – 9x b. –7x – 8x c. –7x^2 + 8x d. 7x + 8x simplify the expression. 19. 4k2(–3k2 – 4k + 5) a. –12k^4 – 16k^3 + 20k^2 b. 12k^4 – 16k^3 + 9k^2 c. –12k^3 + 20k d. k4 + 9k^2 simplify the expression. 20. (2k + 1) (k – 4) a. 2k^2 – 7k + 4 b. 2k^2 –3k + 4 c. 2k^2 + 9k + 4 d. 2k^2– 7k – 4

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Mathematics, 05.10.2019 05:00, gabi83

1. simplify. 5–1(3–2) a) 45 b) 1/45 c) 15^–3 d) 15^2  2. simplify. mn^-4/p^0q^-2 a) mq^2/n^4 b) mp/n^4 c) mn^4q^2p^0 d) q^2/mn^4  3. write in scientific notation. 0.0042 a) 42 × 10^2 b) 4.2 × 10^4 c) 4.2 × 10^3  d). 42 × 10^4 4. write in standard notation. 6.12 × 10^3 a) 6,120  b) 612 c) 61,200 d) 61.2 5. simplify. write in scientific notation. 0.5(8 × 10^5) a) 8 × 5^5 b) 4 × 5^5 c) 8 × 10^5 d) 4 × 10^5  6. simplify. write in scientific notation. (9 × 10^3)^2 a) 8.1 × 10^5 b) 81 × 10^4 c) 81 × 10^3 d) 8.1 × 10^6  7. evaluate 1/2a^4b^2 for a = –2 and b = 4. a) 2  b) 1/2 c) 3 d) 4 8. is the following statement always, never, or sometimes true? a number raised to a negative exponent is negative. a) always b) never c) sometimes  9. simplify (4xy^2)^3(xy)^5 (1 point) a) 64x^8y^11 b) 64x^15y^30 c) 12x^2y^11 d) 12x^8y^11  10. simplify (2t^3)^3(0.4r)^2 (1 point) a) 3.2r^2 b) 1.28r^2/t^-6  c) 1.28r^2/t^9 d) 0.8r^2/t^-6

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Simplify the expression. write the answer using scientific notation. (2 × 10^13)^-2 a.-4×10^-26 b.0....

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