Factor.2x2 - 5x - 42
A. (x + 2)(x - 6)
B. (x - 7)(x - 6)
C. (2x + 7)(x - 6)
D. (7x + 2)(x - 6)
Answer: C
Mathematics
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Add or subtract. Simplify all answers. Express as a mixed number.15
- 8
A. 6
B. 22
C. 23
D. 6
Mathematics
Solve the problem.The range r of a projectile is given by 
where v is the initial velocity and ? is the angle of elevation. If r is to be 
and 
what must the angle of elevation be? Give your answer in degrees to the nearest hundredth.
A. 0.48° B. 0.24° C. 89.76° D. 0.34°
Mathematics
Solve.All 33 of the students in a mathematics class attended class on Monday. On Tuesday only 25 students attended. What was the percent of decrease?
A. 32% B. 24.2% C. 68% D. 75.8%
Mathematics
Simplify.56 - (25 - 11)
A. 42 B. 31 C. 20 D. 14
Mathematics