Write the expression in the standard form a + bi.i14
A. i
B. -1
C. -i
D. 1
Answer: B
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Solve.x + 12.6 = 33.1
A. 21.5 B. 20.5 C. 20 D. 24.5
Solve the problem.The table shows the number of deaths due to car accidents in a certain city in various years. 
Let f(t) be the number of deaths due to car accidents at t years since 2012. Suppose that you wish to model f using a quadratic equation. What is the vertex of the model? What does it mean in this situation?
A. (0, 202); the smallest number of deaths due to car accidents was 202 in 2012 B. (2, 261); the largest number of deaths due to car accidents was 261 in 2014 C. (3, 270); the largest number of deaths due to car accidents was 270 in 2015 D. (5, 219); the smallest number of deaths due to car accidents was 219 in 2017
Solve the system of equations by Gaussian elimination.
A. {(2, 0, -4)} B. {(0, -4, 2)} C. {(2, -4, 0)} D. ?
1 days = ___ hours ?
A. 24 B. 25 C. 1 D. 60