Write the expression in the standard form a + bi.(-8 + 5i)(3 + i)
A. -29 + 7i
B. -19 - 23i
C. -19 + 7i
D. -29 - 23i
Answer: A
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The graph of the function f (x) is a stretching of the graph of 
. Graph the function.
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?
A. ?
B. ?
C. ?
D. ?
Write a system of equations associated with the augmented matrix. Do not try to solve.
A. 3x1 + 3x2 + 5x3 = - 2 5x1 + 7x3 = - 4 3x1 + 6x2 = - 2 B. 3x1 - 3x2 + 5x3 = - 2 5x1 + 7x3 = 4 3x1 + 6x2 = 2 C. 3x1 + 3x2 + 5x3 = - 2 5x1 + 7x3 = 4 3x1 + 6x2 = 2 D. 3x1 + 3x2 + 5x3 = 2 5x1 + 7x3 = 4 3x1 + 6x2 = 2
Solve the problem.One Internet service provider has the following rate schedule for high-speed Internet service:Monthly service charge$18.001st 50 hours of usefreeNext 50 hours of use$0.25/hourOver 100 hours of use$1.00/hourWhat is the charge for 50 hours of high-speed Internet use in one month?What is the charge for 75 hours of high-speed Internet use in one month?What is the charge for 135 hours of high-speed Internet use in one month?
Fill in the blank(s) with the appropriate word(s).
Use the distributive law to multiply.8(8 + 8s)
A. 64 + 512s B. 64 + 64s C. 64 + 8s D. 8 + 64s