Determine if the piecewise defined function is differentiable at the origin.f(x) = 
A. Not differentiable
B. Differentiable
Answer: A
Mathematics
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Expand, where i2 = -1.(1 + i)8
A. 
B. 16
C. -64
D. 
Mathematics
Express the given expression in simplest form with only positive exponents.
A. x9
B. 
C. x17
D. x23
Mathematics
Rewrite each of the following in scientific notation and calculate the answer in scientific notation.
A. 1.0 × 2 B. 1.0 C. 1.0 × 101 D. 1.0 × 10-1
Mathematics
Solve the system of equations by the substitution method.
A. (-15, 5) B. (5, -15) C. infinite number of solutions D. no solution
Mathematics