Find the sum or difference. Write the answer in standard form, a + bi.(2 + 6i) - [(8 + 7i) + (10 - 5i)]
A. -16 + 4i
B. 20 + 8i
C. 20 + 4i
D. -16 + 8i
Answer: A
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Suppose a traveler wanted to visit a museum, an art gallery, and the state capitol building. 45-minute tours are offered at each attraction hourly from 10 a.m. through 3 p.m. (6 different hours). Solve the problem, disregarding travel time.In how many ways could the traveler schedule all three tours in one day, with the museum tour being after noon?
A. 20 B. 60 C. 30 D. 40
Solve the problem.The expression 50b + 240 describes the cost of materials for an X24 computer chip, where b is the number of chips produced. The expression 20b + 700 describes the labor costs. How many chips can be produced with a total budget of $4370?
A. 49 chips B. 51 chips C. 46 chips D. 59 chips
Simplify the expression.
? 
A. 
B. 
C. 
D. 
Establish the identity.
= tan(5?)
What will be an ideal response?