Use a calculator to find the following. Round your answer to four places past the decimal point.
?
sec 30°48'
?
A. 1.2872
B. 1.1642
C. 1.0972
D. -0.9662
E. 1.3182
Answer: B
Mathematics
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For the curve r(t), find an equation for the indicated plane at the given value of t.r(t) = (t - 6)i + (ln(sec t) - 3)j + 9k, -?/2 < t < ?/2; normal plane at t = 2?.
A. x = 2? + 6 B. x = -2? - 6 C. x = 2? - 6 D. x = 6 - 2?
Mathematics
Evaluate the integral.
A. 
B. 
C. 
D. 
Mathematics
Find the foci of the given hyperbola.
- 
= 1
A. (0, - 
) , (0, 
)
B. (-11, 0), (11, 0)
C. (- 
, 0) , (
, 0)
D. (0, -5), (0, 5)
Mathematics
Evaluate the expression for othe given values of the variables.x2 + 3x + 1 for x = 6
A. 40 B. 25 C. 31 D. 55
Mathematics