Solve the problem.In a probability model, which of the following numbers could be the probability of an outcome:0, 0.2, -0.01, - 
, 
, 
, 1, 1.5
A. 0, 0.2, -0.01, 1, 1.5
B. 0, 0.2, 
, 1
C. 0.2, 
, 1
D. 0, 0.2, -0.01, - 
, 
, 1
Answer: B
Mathematics
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Solve the quadratic equation by completing the square.2x2 - 3x - 5 = 0
A. 
B. 
C. 
D. 
Mathematics
Simplify the expression.(-21) ÷ (-3)
A. -8 B. 7 C. -7 D. 8
Mathematics
Solve. Try factoring first. If factoring is not possible or is difficult, use the quadratic formula.
- 
= 0
A. -2
, 2
B. 2, 2
C. 2, -2
, 2
D. 2
Mathematics
The function f is one-to-one. Find its inverse.f(x) = 
A. f-1(x) = x2 + 3, x ? 0
B. f-1(x) = x2 - 3, x ? 0
C. f-1(x) = (x - 3)2
D. f-1(x) = 
Mathematics