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1. Simplify. 5^–1(3^–2)

3. Write in scientific notation. 0.0042

4. Write in standard notation. 6.12 × 10^3

5. Simplify. Write in scientific notation. 0.5(8 × 10^5)

6. Simplify. Write in scientific notation. (9 × 10^–3)^2

my answer is: 8.1 x 10^5

8. Is the following statement always, never, or sometimes true?

A number raised to a negative exponent is negative.

9. Simplify (4xy^2)^3(xy)^5

Idk this one

10. Simplify (2t^–3)^3(0.4r)^2

idk this one

can anyone help?

1-5 , all good

#6.
(9 × 10^–3)^2
= (9 × 10^–3)(9 × 10^–3)
= 81 x 10^-6
= 8.1 x 10^-5

#8 , ok
#9
(4xy^2)^3(xy)^5
= (64x^3 y^6)(x^5 y^5)
= 64 x^8 y^11

10.
(2t^-3)^3 (.4r)^2
= 8 t^-9 (.16r^2
= 12.8 r^2 / t^9

1. b
2. a
3. c
4. a
5. d
6. a
7. b
8. c
9. a
10. c

@! is correct 100% on the more multiplication proerties and exponents Quiz for Algebra 1B on Connections Academy! Good luck everyonee

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