Perform the indicated operation.(5x2 + 13x - 15) + (-7x2 - 7x + 2)
A. -2x2 + 20x - 17
B. -2x2 - 6x - 13
C. -2x2 + 6x - 17
D. -2x2 + 6x - 13
Answer: D
Mathematics
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Solve.The number of bacteria growing in an incubation culture increases with time according to 
where x is time in days. Find the number of bacteria when 
and 
A. 7600, 60,800 B. 7600, 30,400 C. 7600, 45,600 D. 15,200, 60,800
Mathematics
Use the information to complete a circle graph. Note that the circle is divided into 100 equal sections.Intended major of high school students: Science:32%Social Science:8%Humanities:20%Business:16%Other:24%
A. 
B. 
C. 
D. 
Mathematics
Perform the operation indicated. Simplify.
- 
A. 
B. 2x
C. 
D. 2
Mathematics
Find the greatest common factor, GCF, of the expressions.7b3, 7b2k6, 11b4
A. 7b2k6 B. 7b2 C. b2 D. b2k6
Mathematics