Find the solution to the system of equations by the substitution method.x + 9y = 98x - 5y = -5
A. (1, 1)
B. (0, 1)
C. (1, 0)
D. (0, 0)
Answer: B
Mathematics
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Find the quadratic approximation of f at x = 0.f(x) = sin ln(6x + 1)
A. Q(x) = 1 + 6x + 18x2 B. Q(x) = 1 - 6x + 18x2 C. Q(x) = 6x + 18x2 D. Q(x) = 6x - 18x2
Mathematics
If possible, evaluate the expression by hand. If not, approximate the answer to the nearest hundredth. Variables represent any real number.-
A. -x9 B. x9 C. -x8 D. -x24
Mathematics
Solve the problem.Find the consumer's surplus if the demand for an item is given by 
assuming supply and demand are in equilibrium at 
A. 144 B. 216 C. 72 D. 432
Mathematics
The nth term of a sequence is given. Calculate the fifth partial sum.an = 
A. - 
B. - 
C. - 
D. - 
Mathematics