Test the equation for symmetry with respect to the given axis, line, or pole.r = 4 + 4 cos ?;
polar axis
A. may or may not have symmetry with respect to the polar axis
B. has symmetry with respect to the polar axis
Answer: B
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Find the principal unit normal vector N for the curve r(t).r(t) = (6 sin t)i + (6 cos t)j + 9k
A. N = (sin t)i + (cos t)j B. N = (-sin t)i + (cos t)j C. N = (-sin t)i - (cos t)j D. N = (-cos t)i - (sin t)j
Perform the operation and give the answer in Hindu-Arabic form. src="https://sciemce.com/media/4/ppg__ttt0612191108__f1q180g6.jpg" alt="" style="vertical-align: 0.0px;" height="10" width="13" />
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A. 315
B. 285
C. 311
D. 289
Solve using the formula for the future value of an ordinary annuity.Find the value of the annuity at the end of the indicated time period. The amount, frequency of deposits, annual interest rate, and time period are given.amount: $125; quarterly; 10%; 8 years
A. $12,018.91 B. $6718.90 C. $6418.80 D. $6018.78
Find the volume of the solid generated by revolving the region bounded by the given lines and curves about the 
. y = sec x, y = tan x, x = 0, x = 
A. 
B. 
C. 
D. 