Determine the constant of variation for the stated condition.t varies jointly as r and s, and t = 72 when r = 60 and s = 30.
A. k = 
B. k = 30
C. k = 
D. k = 25
Answer: C
Mathematics
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Indicate whether the given series converges or diverges. If it converges, find its sum.
A. Converges; 
B. Converges; 3
C. Converges; 
D. Diverges
Mathematics
Find a rational function that satisfies the given conditions. Answers may vary, but try to give the simplest answer possible.Vertical asymptotes x = -4, x = -1; horizontal asymptote y = - 
; x-intercept (1, 0)
A. f(x) = 
B. f(x) = 
C. f(x) = 
D. f(x) = 
Mathematics
Find the real solutions of the equation.4x-2 - 11x-1 - 3 = 0
A. {- 
, 3}
B. {4, 
}
C. {- 4, 
}
D. {- 
, -3}
Mathematics
For the given functions f and g, find the requested composite function.f(x) = 7x + 15, g(x) = 3x - 1;
Find the function f ? g.
A. 21x + 14 B. 21x + 44 C. 21x + 22 D. 21x + 8
Mathematics