Convert the units using two or three unit fractions.7 yd = 
in.
A. 84
B. 21
C. 252
D. 126
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 normally distributed.Find the percent of times that are between 14.3 and 16.1 seconds.
A. 68% B. 34% C. 47.5% D. 50%
Mathematics
Find the probability of rolling a sum of 4 with one roll of three dice. ?
A. 
B. ?
C. ?
D. ?
E. ?
Mathematics
Find the general solution for the differential equation.
= y2(4 - ex)
A. y = 
B. y = 
C. y = 4x - ex + C
D. y = 
Mathematics
Fill in the blank with one of the words or phrases listed below.
The graph of y = x2 is called a 
.
A. square root B. parabola C. quadratic D. vertex
Mathematics