Use the indicated property to provide a new expression equal to the given expression. Simplify, if possible.-2(x + 4); distributive
A. x - 8
B. 2x - 8
C. -2x - 8
D. -2x + 4
Answer: C
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Solve the system using the inverse of the coefficient matrix of the equivalent matrix equation.0.3x - 0.4y - 0.1z = 4-0.5x + 0.6y + 0.1z = -60.1x + 0.3y - 0.2z = 9
A. {(10, 20, -20)} B. ? C. {(20, 10, -20)} D. {(0, 0, 0)}
Solve the problem.In Country X, the average hourly wage in dollars from 1945 to 1995 can be modeled by f(x) = 
Use f to estimate the average hourly wages in 1950, 1970, and 1990.
A. $0.76, $3.03, $6.79 B. $3.42, $0.37, $6.79 C. $0.76, $2.32, $6.79
The prefix centi- means __________ (one-hundredth, one thousand, one-thousandth).
Fill in the blank(s) with the appropriate word(s).
Given the grades of a student for one semester, find the grade point average. Assume that the grade point values are 4.0 for an A, 3.0 for a B, and so on. Round to the nearest tenth.
A. 3.6 B. 4.0 C. 3.0 D. 12.0