Simplify. Write your answer in the form a + bi, where a and b are real numbers.(5 - 5i) + (1 - 4i)
A. 6 - 9i
B. -6 - 9i
C. 6 - 1i
D. 6 + 9i
Answer: A
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Find the missing parts of the triangle.A = 44.33°B = 20.33°a = 39.28
A. C = 115.33°, b = 50.81, c = 19.53 B. C = 115.33°, b = 19.53, c = 50.81 C. C = 116.33°, b = 50.81, c = 19.53 D. C = 116.33°, b = 19.53, c = 50.81
Solve the problem.A person with no more than $1000 to invest plans to place the money in two investments, telecommunications and pharmaceuticals. The telecommunications investment is to be no more than 3 times the pharmaceuticals investment. Write a system of inequalities to describe the situation. Let 
to be invested in telecommunications and 
to be invested in pharmaceuticals.
A. x + y = 1000 x ? 3y x ? 0 y ? 0 B. x + y = 1000 y ? 3x x ? 0 y ? 0 C. x + y ? 1000 x ? 3y x ? 0 y ? 0 D. x + y ? 1000 3x ? y x ? 0 y ? 0
Use the laws of exponents to simplify each expression using positive exponents only. Assume all variables represent nonzero real numbers.-3-2
A. - 
B. 9
C. 
D. -9
Identify the digit with the given place value.27,938.5ones
A. 8 B. 80 C. 5 D. 0.8