Solve the problem.The total solar radiation H (in W/m2) on a certain surface during an average clear day is given by H = 
(-6 < t < 6),where t is the number of hours from noon. Find the derivative of H with respect to t.
A. 
= - 
B. 
= - 
C. 
= 
D. 
= - 
Answer: B
Mathematics
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Solve the system by elimination.9x + 8y = 0 6x - 2y = 0
A. {(0, 1)} B. {(2, 1)} C. {(0, 0)} D. ?
Mathematics
Determine whether the improper integral converges or diverges.
A. Diverges B. Converges
Mathematics
Solve the inequality. Write the solution set in interval notation.3 + 
? 5
A. (-?, -2] ? [6, ?) B. [-2, 6] C. [-6, 2] D. (-?, -6] ? [2, ?)
Mathematics
Solve.log4
= x
A. x = 
B. x = 
C. x = 2
D. x = -2
Mathematics