For the given parabola, use the discriminant to determine the number of x-intercepts.y = -2x2 - 5x + 3
A. two x-intercepts
B. no x-intercepts
C. one x-intercept
Answer: A
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Find the exact value. Do not use a calculator.tan ?
A. 1 B. -1 C. 0 D. undefined
Determine whether or not the function is one-to-one.
A. No B. Yes
Solve the problem.Determine the unit price (to the nearest tenth of a cent) for the different sizes and indicate how much less the larger size is per unit. A 10-ounce jar of Wake-up Instant Coffee sells for $11.80, and a 16-ounce jar of Wake-up Instant Coffee sells for $10.79.
A. 55.7¢ per ounce B. 57.8¢ per ounce C. 47.3¢ per ounce D. 50.6¢ per ounce
Use the choices below to fill in the blank. Choices may be used more than once or not at all.
The probability of an event that is impossible to happen is 
.
A. 
B. 0
C. factorial of n
D. 1