Solve the problem.Let a = 
, b = 
, and c = 
. Evaluate a × (b + c).
A. 
B. 
C. 
D. 
Answer: C
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Solve the problem by integration.By a computer analysis, the electric current i (in A) in a certain circuit is given by 
where t is the time (in s). Find the total charge that passes a point in the circuit in the first 0.3 s.
A. 0.0063 C B. 0.0003 C C. 0.0012 C D. 0.0058 C
Use < or > to make a true statement.0.69 ? 0.74
A. > B. <
Parametric equations and a parameter interval for the motion of a particle in the xy-plane are given. Identify the particle's path by finding a Cartesian equation for it. Graph the Cartesian equation. Indicate the portion of the graph traced by the particle and the direction of motion.x = 5t + 3, y = 15t + 12, -? ? t ? ?
A. y = 3x - 3
Entire line, from left to right
B. y = 3x + 3
Entire line, from left to right
C. y = 3x + 3
Entire line, from right to left
D. y = 3x - 3
Entire line, from right to left
If a ball is thrown directly upward with a velocity of 64 ft/s, its height (in feet) after t seconds is given by y = 64t - 16t². What is the maximum height attained by the ball?
What will be an ideal response?