Solve the equation by changing it to exponential form.log2x = -4
A. x = -2?4
B. x = 
C. x = - (4)2
D. x = - 
Answer: B
Mathematics
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Simplify the expression.
? 
A. 
B. 
C. 
D. 
Mathematics
Find a polynomial function f(x) of least possible degree having the graph shown.
A. f(x) = -3(x + 2)(x - 1) B. f(x) = 3(x + 2)(x - 1)3 C. f(x) = -3(x + 2)(x - 1)3 D. f(x) = (x + 2)(x - 1)3
Mathematics
Write the number in scientific notation.7485
A. 7.485 × 10-3 B. 7.485 × 101 C. 7.485 × 104 D. 7.485 × 103
Mathematics
Simplify the expression. If any variables are present, assume that they are positive.
? 
A. x3 B. x4 C. 4x D. x5
Mathematics