Provide an appropriate response.Solve the system of equations using the addition method: 4x - y = 9 -x + y = -3
A. x = -1, y = 2
B. x = 2, y = -1
C. x = -1, y = -5
D. x = 5, y = 2
Answer: B
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Solve the problem.An initial investment of $1000 is appreciated for 10 years in an account that earns 12% interest, compounded annually. Find the amount of money in the account at the end of the period.
A. $2773.08 B. $3478.55 C. $3105.85 D. $2105.85
Write the fraction as a decimal. If necessary, use repeating decimal notation.1
A. 1.4
B. 1.45
C. 1.
D. 1.
Use the first derivative test to determine the location of each local extremum and the value of the function at that extremum.f(x) = 
A. Local maximum at (5, 4); local minimum at (3, 0) B. No local extrema C. Local maximum at (3, 0); local minimum at (5, 4) D. Local maximum at (0, 9); local minima at (3, 0) and (11, 9.14)
The lengths of the legs of a right triangle are given. Find the hypotenuse.a = 15, b = 20
A. 18 B. 25 C. 24 D. 13