Find the exact value of the expression.sin 260° cos 20° - cos 260° sin 20°
A. - 
B. - 
C. 
D. - 
Answer: B
You might also like to view...
Write the first five terms of the sequence {an}.a1 = 1, a2 = 2, an + 2 = an + 1 - an
A. 1, 2, 1, 0, -1 B. 1, -1, 2, -3, 5 C. 1, -2, 3, -4, 5 D. 1, 2, 1, -1, -2
For the functions f and g, find the requested value.Evaluate 
(2).
A. - 
B. 0
C. 2
D. 3
Solve the problem.The surface area S (in square inches) of a cylindrical pipe with length 12 inches is given by S(r) = 2?r2 + 24?r, where r is the radius of the piston (in inches). If the radius is increasing with time t (in minutes) according to the formula r(t) = 
t2, t ? 0, find the surface area S of the pipe as a function of the time t.
What will be an ideal response?
Solve.A circular fountain has a diameter of 43 ft. Approximate the distance around the fountain. Use 3.14 for 
A. 5805.86 ft B. 270.04 ft C. 67.51 ft D. 135.02 ft