Find the exact value. Do not use a calculator.sin (4?)
A. 1
B. 0
C. -1
D. undefined
Answer: B
Mathematics
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Find the equation of the hyperbola satisfying the given conditions.Vertices at (3, 0) and (-3, 0); foci at (10, 0) and (-10, 0)
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Mathematics
Find the exact circular function value.cos 2?
A. 0
B. 1
C. -1
D. 
Mathematics
The graph and equation of a polynomial f(x) are given. Determine the number of real zeros and the number of imaginary zeros.f(x) = 3x5 + 10x3 + 15x + 19
A. One real zero; two imaginary zeros B. One real zero; four imaginary zeros C. Two real zeros; three imaginary zeros D. Two real zeros; no imaginary zeros
Mathematics
Factor by grouping.t2 + 9t + 5t + 45
A. (t - 9)(t - 5) B. (t + 9)(t + 5) C. t(t + 45) D. (t + 9)(t - 5)
Mathematics