Find the real solutions, if any, of the equation. Use the quadratic formula.6 + 
+ 
= 0
A. 
B. 
C. 
D. no real solution
Answer: B
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Solve the polynomial equation in the complex numbers. x4 + 5x3 - 2x2 - 18x - 12 = 0
A. {-1, 3, -3 + 
, -3 - 
}
B. {-1, -2, -3 + 
, -3 - 
}
C. {1, -2, -3 + 
, -3 - 
}
D. {-1, 2, -3 + 
, -3 - 
}
Solve the exponential equation. Use a calculator to obtain a decimal approximation, correct to two decimal places, for the solution.e4x = 2
A. {2.77} B. {1.36} C. {0.17} D. {0.69}
Find the probability.A digit is chosen randomly from the digits 0 through 9 and then 7 is added to the digit and the sum recorded. Find the probability that the sum is less than 9.
A. 
B. 
C. 
D. 
Two planes take off at the same time from an airport. The first plane is flying at 246 miles per hour on a course of 130.0°. The second plane is flying in the direction 165.0° at 359 miles per hour. Assuming there are no wind currents blowing, how far apart are they after 2 hours? ? Apply the rules regarding the use of significant digits after all computations are complete. ?
A. 423 miles B. 421 miles C. 427 miles D. 431 miles E. 429 miles