Factor completely.x2 + 7x - 30
A. (x - 10)(x + 1)
B. prime
C. (x + 10)(x - 3)
D. (x - 10)(x + 3)
Answer: C
Mathematics
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and directrix  Figure 2.png)
What will be an ideal response?
Mathematics
At one high school, students can run the 100-yard dash in a mean of 15.2 seconds with a standard deviation of 0.9 seconds. The times are very closely approximated by a normal curve. Rounding to the nearest tenth of a percent as necessary, find the percent of times that are:Between 14.3 and 16.1 seconds
A. 47.5% B. 68% C. 50% D. 34%
Mathematics
Perform the indicated operation and write the answer in lowest terms. 
2
A. - 
B. - 
C. 
D. 
Mathematics
Evaluate.Find (fg)(2) when f(x) = x - 6 and g(x) = -3x2 + 11x - 7.
A. -152 B. -76 C. 24 D. -12
Mathematics