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This is an MCQ-quiz for SAT Mathematics, which include questions on Exponents.
If (300)(400) = 12 * 10^n, n =
2
4
12
3
7
(2x10^3) x (2x10^6) x (2x10^12) = ?
6x10^21
8x10^23
6x10^23
8x10^21
If 3^x = 27, then 2^(2x) = ?
9
32
3
64
8
Find the value of x such that:
8^(x-3) = 16^(4-x)
11/3
19/4
4
7/2
25/7
Which of the following is equal to 4^10 + 4^10 + 4^10 + 4^10 + 4^11?
2^23
2^40
2^15
2^50
260
If 3 + 3^(n+3) = 81, what is 3^(n+2) ?
26
3
9
18
81
If f(x) = (2 – x)^(x/3), and 4^n = f(10), then what is the value of n?
–5
0
5
2
–2
What is the value of n that satisfies the following equation?
2^n·4^n·8^n·16 = 2^-n·4^-n·8^-n
–1/3
1/3
2/3
0
–2/3
If 125^(2x–4) = 625^(7–x), then what is the largest prime factor of x?
7
3
11
5
2
(x^3)^2 * x^–2 =
x6
x
x–4
x4
x2
