Decide if the function is linear.4x + 2y = 3
A. No
B. Yes
Answer: B
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Find the simplest form of a second-order homogeneous linear differential equation that has the given solution.y = c1e-5x cos 3x + c2e-5x sin 3x
A. D2y - 10Dy + 34y = 0 B. D2y + 10Dy - 34y = 0 C. D2y - 10Dy - 34y = 0 D. D2y + 10Dy + 34y = 0
Solve the problem.The function A = A0e-0.00693x models the amount in pounds of a particular radioactive material stored in a concrete vault, where x is the number of years since the material was put into the vault. If 200 pounds of the material are initially put into the vault, how many pounds will be left after 120 years? Round to the nearest pound.
A. 83 lb B. 87 lb C. 112 lb D. 120 lb
Graph the linear inequality.y < -5x + 1
A. 
B. 
C. 
D. 
Use a calculator to approximate to three decimal places.
A. 1.166 B. 1 C. 1.194 D. 1.179