Solve the equation using the quadratic formula.x2 - 14x + 53 = 0
A. {9, 5}
B. {7 ± 2i}
C. {-7 ± 2i}
D. {14 ± 4i}
Answer: B
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Calculate the area of the surface S.S is the lower portion of the sphere x2 + y2 + z2 = 81 cut by the cone z = 
A. 18
?
B. 162
?
C. 81
D. 81
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Provide an appropriate response.You are asked to change 
to a mixed number. What should be your first step?
A. Multiply 25 and 24. B. Divide 24 by 25. C. Add 25 and 24. D. Divide 25 by 24.
Solve the problem.A ladder leans against a building that has a wall slanting away from the ladder at an angle of 96° with the ground. If the bottom of the ladder is 23 feet from the base of the wall and it reaches a point 52 feet up the wall, how tall is the ladder to the nearest foot?
A. 59 ft B. 61 ft C. 60 ft D. 58 ft
Simplify the complex number and write it in standard form.
?
?
?
A. ?16 B. ?-16 C. ?16i D. ??-16i E. ?2i