Solve the problem.The motion of a spring-mass system is described by the equation 
where y is the distance in feet from the equilibrium position and t is time in seconds. Find the acceleration of the mass at time t = 3/4 seconds.
A. -5? feet/sec2
B. 0 feet/sec2
C. -5?2 feet/sec2
D. 5?2 feet/sec2
Answer: C
Mathematics
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Find a formula for the inverse of the function described below.32° Fahrenheit = 0° Celsius. A function that converts temperatures in Celsius to those in Fahrenheit is 
Fahrenheit.
A. f-1(x) = 
(x - 32)
B. f-1(x) = 
(x + 32)
C. f-1(x) = x + 32
D. f-1(x) = 
x + 32
Mathematics
Multiply.(2a - 1)2
A. 2a2 - 4a + 1 B. 2a2 + 1 C. 4a2 + 1 D. 4a2 - 4a + 1
Mathematics
Use the unit circle to find all values of ? between 0 and 2? for which 
.
What will be an ideal response?
Mathematics
Find the exact value of y, or state that y is undefined.y = sec-1 
A. - 
B. - 
C. 
D. 
Mathematics