Make an appropriate substitution in order to obtain a quadratic equation. Find all complex values for x. x - 12x1/2 + 20 = 0
A. x = ± 10, ± 2
B. x = 100, 4
C. x = 10, 2
D. x = ±
, ±
Answer: B
Mathematics
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Evaluate the integral. 
A. 9 sin-1
- 
+ C
B. 9 sin-1
- x
+ C
C. 
- 3 ln
+ C
D. -3sin-1
- x2
+ C
Mathematics
Add.99 + 71 + 46
A. 206 B. 227 C. 217 D. 216
Mathematics
Solve the problem.An auditorium has 25 rows, with 10 seats in the first row, 12 in the second row, 14 in the third row, and so forth. How many seats are in the auditorium?
A. 900 B. 550 C. 500 D. 850
Mathematics
Solve the problem.Under your new job contract, you will earn $22.50 per hour for the next 2 years. Assuming that you keep this job and work 40 hours per week, 52 weeks per year, what will your total gross earnings be over the next 2 years?
A. $93,500 B. $93,700 C. $83,600 D. $93,600
Mathematics