Consider only the discriminant, b2 - 4ac, to determine whether one real-number solution, two different real-number solutions, or two different imaginary-number solutions exist.3x2 = -3x - 6
A. One real solution
B. Two different real-number solutions
C. Two different imaginary-number solutions
Answer: C
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The life expectancy E, in solar lifetimes, of certain stars depends on their mass M, in solar masses. The relationship is 
.
How does the life expectancy of larger stars compare with that of smaller stars? A graph of E versus M can help you answer this question.
?
A. Larger stars live 2.5 times as long as smaller stars. B. Larger stars have longer life expectancy. C. Larger stars have shorter life expectancy. D. All of the above.
Find Pk+1 from the given statement Pk.Pk: 5k > 6k
A. Pk+1: 5k + 1 > 6k + 1 B. Pk+1: 5k+1 > 6k + 1 C. Pk+1: 5k + 1 > 6(k + 1) D. Pk+1: 5k+1 > 6(k + 1)
Rewrite the expression in terms of exponentials and simplify the results.(sinh x + cosh x)6
A. e6x - e-6x
B. e6x
C. 
D. ex6
Completely factor the polynomial.3x3 + 6x2 + 3x + 6
A. 3(x2 + 2)(x + 2) B. 3(x2 + 1)(x + 6) C. (3x2 + 3)(x + 2) D. 3(x2 + 1)(x + 2)