The equation gives the position s = f(t) of a body moving on a coordinate line (s in meters, t in seconds).s = 5 + 7 cos tFind the body's jerk at time t = ?/3 sec.

A.  m/sec3
B.  m/sec3
C. -  m/sec3
D. -  m/sec3


Answer: A

Mathematics

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Evaluate the integral by making a substitution and then using a table of integrals.

A. tan-1   + C
B. tan-1   + C
C. sin-1   + C
D. sin-1   + C

Mathematics

Simplify.

A. 4p + 8q
B. 8p + 4q
C.
D.

Mathematics

Solve the system of equations using substitution.

A. x = 3, y = 2; x = 2, y = 3 or (3, 2), (2, 3) B. x = -3, y = -2; x = -2, y = -3 or (-3, -2), (-2, -3) C. x = -3, y = 2; x = -2, y = 3 or (-3, 2), (-2, 3) D. x = 3, y = -2; x = 2, y = -3 or (3, -2), (2, -3)

Mathematics

Graph.y + 5 = 0

A.

B.

C.

D.

Mathematics