The equation gives the position s = f(t) of a body moving on a coordinate line (s in meters, t in seconds).s = -6 + 7 cos tFind the body's acceleration at time t = ?/3 sec.
A. - 
m/sec2
B. - 
m/sec2
C. 
m/sec2
D. 
m/sec2
Answer: A
Mathematics
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Add and, if possible, simplify.- 
x + 
x
A. 
x
B. - 
x
C. 
x
D. - 
x
Mathematics
Solve the problem.Sumi Kato's savings account has a balance of $3950. After 13 years, what will the amount of interest be at 5.5% compounded annually?
A. $5135.00 B. $3978.81 C. $3961.81 D. $3972.81
Mathematics
You are given a table showing input and output values for a given function y1 = f(x). Use the table to answer the question.What is the y-intercept of the graph of y = f(x)?
A. 3 B. 0 C. -3 D. -1
Mathematics
Use the properties of determinants to find the value of the second determinant, given the value of the first.
= 23
= ?
A. 69 B. -69 C. 23 D. -23
Mathematics