Use the theoretical probability formula to solve the problem. Express the probability as a fraction reduced to lowest terms.You are dealt one card from a standard 52-card deck. Find the probability of being dealt an ace or a 7.
A. 
B. 
C. 
D. 8
Answer: C
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Express in scientific notation.0.000000446019
A. 4.46019 × 10-6 B. 4.46019 × 106 C. 4.46019 × 10-7 D. 4.46019 × 107
Compare the right-hand and left-hand derivatives to determine whether or not the function is differentiable at the point whose coordinates are given.
? y = x2 y = 
A. Since limx?1+ f '(x) = 2 while limx?1- f '(x) = 
, f(x) is not differentiable at 
B. Since limx?1+ f '(x) = 
while limx?1- f '(x) = 2, f(x) is not differentiable at 
C. Since limx?1+ f '(x) = 
while limx?1- f '(x) = 1, f(x) is not differentiable at 
D. Since limx?1+ f '(x) = 2 while limx?1- f '(x) = 2, f(x) is differentiable at 
Find the product.75% of 400
A. 30 B. 300 C. 3000 D. 3
Solve the problem.Let n(A) = 4, n(B) = 9, and n(A ? B) = 2. Find n(A ? B).
A. 10 B. 11 C. 12 D. 13