Use the even-odd properties to find the exact value of the expression. Do not use a calculator.tan (-30°)
A. -
B. 
C. 
D. - 
Answer: D
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Find the parametric equations for the line tangent to the curve at the given point.r(t) = 
at t = 1
A. x = 1 + 8t, y = -6 - 6t, z = 2 + 6t B. x = 1 + t, y = -6, z = 2 + t C. x = 8 + 8t, y =-6 - 6t, z = 7 + 6t D. x =8 + t, y = -6 - 6t, z = 6 + 2t
Perform the operation.Multiply 639 by 125
A. 79,865 B. 79,885 C. 79,875 D. 79,975
Solve the right triangle. If two sides are given, give angles in degrees and minutes.
a = 10.9 cm, b = 21.7 cmRound the missing side length to one decimal place.
A. A = 30°9'; B = 59°51'; c = 22.6 cm B. A = 30°9'; B = 59°51'; c = 24.3 cm C. A = 26°40'; B = 63°20'; c = 25.8 cm D. A = 26°40'; B = 63°20'; c = 24.3 cm
Solve the quadratic equation.x2 + 3x - 88 = 0
A. {-11, 8} B. {-8, 11} C. {-11, 1} D. {8, 11}