Solve the equation.47 - 3x = 
A. 
B. {3}
C. {4}
D. {-3}
Answer: B
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 17 and 17.9 seconds
A. .5% B. 13.5% C. 16% D. 2%
Mathematics
Find the general solution of the equation. Express the solution explicitly as a function of the independent variable.t-7y'(t) = 5
A. y = 
t8 + C
B. y = 45t9 + C
C. y = 40t8 + C
D. y = 
t-8 + C
Mathematics
Verify the identity.csc2u - cos u sec u= cot2 u
What will be an ideal response?
Mathematics
Translate to an equation and solve. When necessary, round to the nearest hundredth.What is 9% of $420?
A. $33.60 B. $378.00 C. $42.00 D. $37.80
Mathematics