Write the expression in the standard form a + bi.(3 + 4i)(2 - 5i)
A. 26 + 7i
B. -20i2 - 7i + 6
C. 26 - 7i
D. -14 + 23i
Answer: C
Mathematics
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Solve the problem. Round dollar amounts to the nearest cent. Use ordinary interest unless otherwise indicated.On October 12, Marge Smith paid a state income tax payment, which was due on June 30. The penalty was 10% simple interest on her unpaid tax of $641. Find the penalty using exact interest.
A. $17.91 B. $18.52 C. $18.26 D. $18.44
Mathematics
Sketch the graph of the given function.f(x) = 12(
)x
A. 
B. 
C. 
D. 
Mathematics
Evaluate the expression with the given replacement values.7x2; x = 3
A. 147 B. 441 C. 63 D. 42
Mathematics
Solve the equation. Express radicals in simplest form.
m2 = - 
m + 
A. 
B. ?
C. 
D. 
Mathematics