Write the inequality obtained by performing the indicated operation on the given inequality.Subtract 5 from each side of the inequality 1 - 5x ? -1.
A. -4 - 10x ? -6
B. -4 - 5x ? -6
C. -4 - 5x ? -6
D. -4 - 10x ? -6
Answer: C
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Illustrate Goldback's conjecture for the following number.32
A. 13 + 19 B. 25 C. 16 + 16 D. 7 + 25
Solve the equation in the complex number system.x4 - 2x2 - 3 = 0
A. {
i, i}
B. {- 
, 
, i, -i}
C. {-
i, -i}
D. {
, 3}
State whether the function is a polynomial function or not. If it is, give its degree.f(x) = 2 - 
x
A. Not a polynomial B. Yes; degree 1 C. Yes; degree 0 D. Yes; degree 2
Solve the problem.Barbara knows that she will need to buy a new car in 2 years. The car will cost $15,000 by then. How much should she invest now at 6%, compounded quarterly, so that she will have enough to buy a new car? Round to the nearest cent.
A. $14,138.94 B. $13,315.67 C. $14,150.94 D. $12,594.29