Find the general solution of the differential equation. Use C, C1, C2, . . . to denote arbitrary constants. If used, do not simplify hyperbolic functions.y'(t) = 7 + e-4t
A. y = 7 - 
+ C
B. y = 7t + e-4t + C
C. y = -4e-4t + C
D. y = 7t - 
+ C
Answer: D
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Solve and check.-6s = -102
A. s = -96 B. s = 17 C. s = 96 D. s = 2
Solve the problem.A study was conducted to compare the average time spent in the lab each week versus course grade for computer students. The results are recorded in the table below. By using linear regression, the following function is obtained: 
where x is the number of hours spent in the lab and y is grade on the test. Use this function to predict the grade of a student who spends 13 hours in the lab. Number of hours spent in lab Grade (percent) 10 96 11 51 16 62 9 58 7 89 15 81 16 46 10 51
A. 64.4 B. 60.4 C. 75.6 D. 67.0
Determine whether B is the inverse of A.A = 
, B = 
A. Yes B. No
Evaluate the expression.-(90) + (-13)0
A. -2 B. -4 C. 1 D. 0