Suppose that the distance function for the vehicle moving in a straight is given by the equation 
, where t represents the time of movement. How much time should be spent to maximize the distance.
A. 60
B. 128
C. 72
D. 64
Answer: D
Mathematics
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Graph the equation.y = 5x2 - 1
A. 
B. 
C. 
D. 
Mathematics
Multiply. Write the answer in lowest terms.
? 
A. 
B. 
C. 
D. 
Mathematics
What is the area of a circle if it has a circumference of 22p ft?
(a) 11p ft² (b) 22p ft² (c) 484p ft² (d) 121p ft²
Mathematics
Solve the problem.In 1992, the population of a country was estimated at 5 million. For any subsequent year, the population, P(t) (in millions), can be modeled using the equation 
where t is the number of years since 1992. Determine the year when the population will be 39 million.
What will be an ideal response?
Mathematics