Solve the equation.log2(x + 4) = 1
A. {6}
B. {-2}
C. {5}
D. {-3}
Answer: B
Mathematics
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Find the quadratic approximation of f at x = 0.f(x) = esin 5x
A. Q(x) = 1 + 5x + 
x2
B. Q(x) = 5x - 
x2
C. Q(x) = 1 - 5x + 
x2
D. Q(x) = 5x + 
x2
Mathematics
Use scientific notation to solve the problem.The earth is approximately 92,900,000 miles from the sun. Write this distance in scientific notation.
A. 9.29 x 109 miles B. 9.29 x 108 miles C. 9.29 x 107 miles D. 9.29 x 106 miles
Mathematics
Rationalize the numerator. Assume all variables represent positive numbers.
A. 
B. 
C. 
D. x4
Mathematics
Find the perimeter of the geometric figure.
A. r3 + 5r2 + 12r + 14 B. 6r3 + r2 + 11r + 14 C. 6r3 + 12r + 14 D. r3 + 6r2 + 11r + 14
Mathematics