Find the y-intercept of the polynomial function.f(x) = 7x - x3
A. 7
B. -7
C. -1
D. 0
Answer: D
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Evaluate the integral.
A. 2232 B. 31 C. 279 D. 248
Use the Hamilton method to make the assignment.The students of 5th, 6th, and 7th grades of Great Middle School are putting up a charity show. The 
committee making decisions is in proportion to the number of students in each grade. There are 126 
105 6th-graders and 97 7th-graders. Assign members to the committee.
A. 5th: 3; 6th: 3; 7th: 4 B. 5th: 4; 6th: 4; 7th: 3 C. 5th: 4; 6th: 3; 7th: 4 D. 5th: 3; 6th: 4; 7th: 4
Find y".y = 5 sin(2x + 8)
A. -20 sin(2x + 8) B. -20 cos(2x + 8) C. -10 sin(2x + 8) D. 10 cos(2x + 8)
Solve the problem.A generator produces an alternating current according to the equation 
where t is time in seconds and I is the current in amperes. What is the smallest time t such that 
A. 
second
B. 
second
C. 
second
D. 
second