Solve the equation.3x + 9 = 39
A. 31
B. 4
C. 10
D. 27
Answer: C
Mathematics
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Solve the problem by integration.The current i (in A) as a function of the time t (in s) in a certain electric circuit is given by 
Find the total charge that passes a given point in the circuit during the first three seconds.
A. 3.664 C B. 11.067 C C. 1.230 C D. 3.689 C
Mathematics
Solve the problem.Jim and Tammi climbed to the top of a 21,120-ft mountain. How many miles did they climb?
A. 4 mi B. 8 mi C. 4.5 mi D. 5 mi
Mathematics
Graph the function.Use the graph of f(x) = log x to obtain the graph of g(x) = log x - 1.
A. 
B. 
C. 
D. 
Mathematics
Find the area of the figure using determinants.
A. 18.0 B. 19.0 C. 18.5 D. 17.25
Mathematics