Question

Simplify: x^-5.
A. 1/x^4
B. 1/x^5
C. x^5
D. x^4

Simplify: 4^-3, so the exponent is positive.
A. 1/2^3
B. 1/3^2
C. 1/4^3
D. 1

Simplify: 3^-3 = ?
A. -9
B. -1/9
C. 1/27
D. -1/27

Simplify (16x^4y^3) ÷ (4x^4).
A. 4x^8y^3
B. 4x^8
C. x^4y^3
D. 4y^3


Simplify: x^-5.
A. 1/x^4
B. 1/x^5
C. x^5
D. x^4


Write 0.000045 in scientific notation.
A. 4.5 · 10^-5
B. 4.5 · 10^-6
C. 4.5 · 10^-4
D. None of the above

Answer 1

b,c,c,d,b,a

Answer 2

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