Parametrize the surface S.S is the portion of the cylinder x2 + y2 = 9 that lies between z = 4 and z = 8.
What will be an ideal response?
Answers will vary. One possibility is r = 3 cos ?i + 3 sin ?j + zk , 4 ? z ? 8, 0 ? ? ? 2?
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Decide if the statement “If a triangle with sides a, b and c, with c the longest side, is a right triangle, then 
is true or false.Then form its converse and decide if its converse is true or false. If both the statement and its converse are true, write the biconditional that is equivalent to both statements.
What will be an ideal response?
Convert to decimal notation.
A. 0.
B. 2.1
C. 0.5
D. 0.4
Perform the indicated operations. Write the resulting polynomial in standard form.(7x7 + 7x5 + 8x) + (3x7 - 4x5 - 4x)
A. 17x13 B. 10x7 + 3x5 + 4x C. 11x7 + 3x5 + 3x D. 10x + 3x7 + 4x5
Solve.The period of vibration P for a pendulum varies directly as the square root of the length L. If the period of vibration is 4 sec when the length is 64 inches, what is the period when L = 3.0625 inches?
A. 5 sec B. 4.75 sec C. 0.875 sec D. 4.25 sec