just sub in the value:
-a^-2 = -(a^-2) = -1/a^2 = -1/(-5)^2 = -1/25
What is -a^-2 if a equals -5
5 answers
correct
It’s 1/25 or 1/5^2
Exponents an Exponential Functions: Zero Negative Exponents (unit 3, lesson 1)
1. What is the simplified form of 3a^4b^-2c^3?
D: 3a^4c^3/b^2
2. What is -a^2 is a=-5?
C: -1/25
3. What is the simplified form of -(14x)^0y^-7z?
D: -z/y^7
4. What is (-m)^3n if m=2 and n=-24
A: 3
5. Which of the following simplifies to a negative number?
A: -4^-4
1. What is the simplified form of 3a^4b^-2c^3?
D: 3a^4c^3/b^2
2. What is -a^2 is a=-5?
C: -1/25
3. What is the simplified form of -(14x)^0y^-7z?
D: -z/y^7
4. What is (-m)^3n if m=2 and n=-24
A: 3
5. Which of the following simplifies to a negative number?
A: -4^-4
a person is correct I got 100%
1 answer