Solve the problem.If n(A) = 10, n(A ? B) = 28, and n(A ? B) = 6, find n(B).
A. 25
B. 18
C. 24
D. 23
Answer: C
Mathematics
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At one high school, the mean time for running the 100-yard dash is 
with a standard deviation of 0.9 seconds. The times are very closely approximated by a normal curve. Find the percent of times that are:Between 14.3 and 16.1 seconds
A. 34% B. 47.5% C. 50% D. 68%
Mathematics
Find the Cartesian coordinates of the given point.
A. (2
, -2
)
B. (2
, -2)
C. (-2
, -2
)
D. (-4
, -4
)
Mathematics
Solve.Let f(x) = -6
+ 3. Find x when f(x) = -9.
A. 1 B. 2 C. -2 D. -1
Mathematics
Find the length of the line segment.
A. 30
B. 185
C. 30
D. 10
Mathematics