Solve the problem.A generator produces an alternating current according to the equation 
where t is time in seconds and I is the current in amperes. What is the smallest time t such that 
A. 
second
B. 
second
C. 
second
D. 
second
Answer: C
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Solve the system. If the system has infinitely many solutions, write the solution set with x arbitrary. x + y - 2z - 8 = 03x + z + 6 = 02x - y + 3z + 14 = 0
A. {(x, 7x + 4, -3x - 6)} B. {(x, 7x - 4, -3x - 6)} C. {(x, -7x + 4, -3x - 6)} D. {(x, -7x - 4, -3x - 6)}
Collect like terms.-9x3 - 6x3
A. -45x B. Can't be simplified C. -15x6 D. -15x3
Suppose an investment is expected to generate income at the rate of
?
?
dollars/year for the next 6 years. Find the present value of this investment if the prevailing interest rate is 0.04% /year compounded continuously. Round your answer to the nearest dollar.
?
$__________
Fill in the blank(s) with the appropriate word(s).
The graph of a function is given. Determine whether the function is increasing, decreasing, or constant on the given interval.(-2.5, 2.2) 
A. decreasing B. increasing C. constant