A card is drawn randomly from a standard 52-card deck. Find the probability of the specified event. The card is not a 10.
A. 
B. 
C. 
D. 
Answer: C
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Find the focus and the directrix of the parabola.y = x2 + 14x + 50
A. Focus: 
; directrix: y = 1
B. Focus: 
; directrix: y = 
C. Focus: 
; directrix: x = 1
D. Focus: (-7, 2); directrix: y = 0
Solve the problem.An investment is worth $3836 in year 0. By year 5 it has grown to $6376. Let I be the value of the investment in year x. The linear equation I = 508x + 3836 models the value, I, of the investment on year x. Interpret the slope.
A. The value of the investment increased by $508 between year 0 and year 5. B. The value of the investment is increasing at a rate of $508 per year. C. The value of the investment is increasing at a rate of $3836 per year. D. The value of the investment is decreasing at a rate of $508 each year.
Provide an appropriate response.The cube of a negative number is negative.
A. True B. False
Find the standard form of the equation of the ellipse.
A. 
+ y2 = 1
B. 
+ y2 = 1
C. x2 + 
= 1
D. x2 + 
= 1