Graph the curve whose parametric representation is given. x = 4 cos2 t , y = 2 sin2t, 0 ? t ? 2?

A.

B.

C.

D.


Answer: B

Mathematics

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Solve the problem.The position of a particle moving along a coordinate line is s =  with s in meters and t in seconds. Find the particle's acceleration at 

A. -  m/sec2
B.  m/sec2
C.  m/sec2
D. -  m/sec2

Mathematics

Find the measure of the dihedral angle indicated.The figure shown is a right prism whose bases are regular hexagons. Find the measure of the dihedral angle between adjacent lateral faces.

A. 90° B. 135° C. 120° D. 60°

Mathematics

Solve the equation after making an appropriate substitution.x2/3 - 6x1/3 + 5 = 0

A. {1, 125} B. {-125, -1} C. {1, 5} D. {-5, -1}

Mathematics

Find the probability.A spinner has regions numbered 1 through 15. What is the probability that the spinner will stop on an even number or a multiple of 3?

A.
B. 12
C.
D.

Mathematics