What is the simplified form of 3a^4b^-2c^3?
a. (81a^4c^3)/(b^2)
b. (81a^4)/(b^2c^3)
c. (3a^4)/(b^2c^3)
d. (3a^4c^3)/(b^2)
D
What is -a^-2 if a = -5?
a. -25
b. 25
c. -1/25
d. 1/25
D
What is (-m)^-3n if m = 2 and n = -24?
a. 3
b. -3
c. 4
d. -4
A
What is the simplified form of 3a^4b^-2c^3?
a. (81a^4c^3)/(b^2)
b. (81a^4)/(b^2c^3)
c. (3a^4)/(b^2c^3)
d. (3a^4c^3)/(b^2)
D YES
What is -a^-2 if a = -5?
a. -25
b. 25
c. -1/25
d. 1/25
D No -1/(-5)^2 = -1/25 so C
What is (-m)^-3n if m = 2 and n = -24?
a. 3
b. -3
c. 4
d. -4
A NONE OF THESE. -2^72 is huge. You have a TYPO
It is not -3n. It is (-m)^-3 n. So it would be -.125* -24, which is how I did it.
[(-m)^-3 ] n
[1/(-2)^3] (-24)
(1/-8)(-24)
3
YES A
Thank you so much! Just one quick question...is it a rule to always simplify first and then substitute, as in question 2?
That is up to you.
Are all of these correct Damon?
all of Damon's answers are correct
1.d
2.c
3.d
4.a
5.a
^^^^^^^^
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if you also have 6 questions, the answer for 6 is A
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1. D
2. C
3. D
4. A
5. A
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2020
d
c
d
a
a
a
1. d. 3a^4c^3/b^2
2. c. - 1/25
3. d. - z/y^4
4. a. 3
5. a. -4 ^-4
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2021, Unit 2 EaEF
1, D. 3a^4c^3/b^2
2, C. -1/25
3, D. -z/y^7
4, A . 3
5, A. -4^-4
Still Works in 2022! Thanks Boop!
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yep still works as of 2022
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1 d
2 c
3 d
4 a
5 a
6 a
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D
C
D
A
A
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boop is still correct as of 2023
1:D
2:C
3:D
4:A
5:A
6:A