Solve the problem.The driver of a car traveling at 48 ft/sec suddenly applies the brakes. The position of the car is 
t seconds after the driver applies the brakes. How many seconds after the driver applies the brakes does the car come to a stop?
A. 8 sec
B. 48 sec
C. 16 sec
D. 24 sec
Answer: A
Mathematics
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A recursion formula and the initial term(s) of a sequence are given. Write out the first five terms of the sequence.a1 = 1, a2 = 5, an+2 = an+1 - an
A. 1, 5, 4, -1, -5 B. 1, 5, 4, 3, 2 C. 1, -1, 2, -3, 5 D. 1, -5, 6, -7, 8
Mathematics
Find the vertex, focus, and directrix of the parabola with the given equation.(y + 4)2 = 12(x + 1)
A. vertex: (-1, -4) focus: (-4, -4) directrix: x = 2 B. vertex: (-4, -1) focus: (-1, -1) directrix: x = -7 C. vertex: (1, 4) focus: (4, 4) directrix: x = -2 D. vertex: (-1, -4) focus: (2, -4) directrix: x = -4
Mathematics
Use the square root method to solve the equation. 2x2 = 30
A. 15
B. 16
C. ±15
D. ±
Mathematics
True or false:
Mathematics