Solve the system of equations by elimination. 8x - 4y = 1012x - 6y = -15
Fill in the blank(s) with the appropriate word(s).
no solution
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A recursion formula and the initial term(s) of a sequence are given. Write out the first five terms of the sequence.a1 = 1, a2 = 6, an+2 = an+1 + an
A. 1, 6, 7, 8, 9 B. 1, 1, 2, 3, 5 C. 1, 6, 7, 13, 20 D. 1, 6, 7, 14, 21
Find an antiderivative of the given function.f(s) = 5 
- 4
A. 
s4/3 - 4s
B. 
s3/4 - 4s
C. 
s4/3 - 4s
D. 
s3/4 - 4s
The point P(x, y) on the unit circle that corresponds to a real number t is given. Find the values of the indicated trigonometric function at t.
?Find sec t.
A. 
B. 
C. 
D. 
Use the graph of f to determine the intervals where f is increasing and where f is decreasing.
A. increasing: [-2, 1]; decreasing: (-?, -2] ? [1, ?) B. increasing: [-2, 0] ? [1, ?); decreasing: (-?, -2] ? [0, 1] C. increasing: [-2, ?); decreasing: (-?, -2] D. increasing: [0, ?); decreasing: (-?, 0]