Plot the point in a polar coordinate system.(4.5, -?)
A. 
B. 
C. 
D. 
Answer: C
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Solve the problem.
?The graph shows the amount of gas in a 200-gallon tank after x minutes have elapsed. (i) Is the gas entering or leaving the tank? (ii) Find the x-intercept and the y-intercept.
A. Entering; both intercepts are 0 B. Leaving; x-intercept is 0 and y-intercept is 200 C. Entering; x-intercept is 200 and y-intercept is 0 D. Leaving; both intercepts are 0
Add or subtract. Assume that variables represent nonnegative values.18
+ 13
A. 5
B. -4
C. -32
D. 31
Write a word name for the decimal.0.093
A. Ninety-three hundredths B. Ninety-three hundred-thousandths C. Ninety-three ten-thousandths D. Ninety-three thousandths
Factor the polynomial f(x). Then solve the equation f(x) = 0.f(x) = x3 + 5x2 - 9x - 45
A. (x - 3)(x + 3)(x - 5) ; 3, -3, 5 B. (x + 3)(x + 3)(x - 6) ; 3, -3, 6 C. (x + 3)(x - 3)(x + 5) ; -3, 3, -5 D. (x - 3)(x + 3)(x - 5) ; -3, 3, -5