Solve.A coil of wire rotating in a magnetic field induces a voltage given by 
where t is time in seconds. Find the smallest positive time to produce a voltage of 10
. Round values to the nearest hundredth.
A. 3? sec
B. 2.8 sec
C. 2.8? sec
D. 3 sec
Answer: D
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Solve the problem.Nikki is fishing from a bank 43 feet above water level. In this location, the fish tend to feed at 44 feet below the surface. How long must Nikki's fish line be to reach the fish?
A. 1 feet B. -43 feet C. -1 feet D. 87 feet
Simplify the expression by combining any like terms.2x2 - 4x - 7 + 6x - 6 + 4x2
A. 6x2 + 2x - 13 B. -5x3 C. 6x4 + 2x2 - 13 D. -3x2 + 8x - 10
Find a polynomial of least degree with only real coefficients and having the given zeros. -
, 
, and -4i
A. f(x) = x4 + 26x2 + 48 B. f(x) = x4 - 13x2 - 48 C. f(x) = x4 - 26x2 + 48 D. f(x) = x4 + 13x2 - 48
Solve the problem.The following data represents the number of employees at a company at the start of each year since the company began. 
Find the slope of the line of best fit for the data set and interpret it.
What will be an ideal response?