Evaluate the expression (4-i)(4+i) and write in the form a + bi.
(a) 16i
(c) 8 + i
(d) 8 - i
(e) 8 + i
(b) 17 - 0i
Mathematics
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Simplify the fraction, if possible.
A. 25
B. 0
C. undefined
D. 
Mathematics
Fill in the blank with one of the words or phrases listed below.
Two numbers whose sum is 0 are called 
.
A. opposites B. reversed C. the same D. reciprocals
Mathematics
Solve the problem.Find the total area of the ends of the garage.
A. 390 ft2 B. 157.5 ft2 C. 280 ft2 D. 315 ft2
Mathematics
Graph the piecewise linear function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics