Use the distributive property to simplify.9(x + 2)
A. 9x + 11
B. 9x + 18
C. 9x + 2
D. x + 18
Answer: B
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250 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with mean ? = 75 and standard deviation ? = 10.A score of 95 corresponds to a standardized value of
A. 8.5. B. -2. C. 2. D. 20. E. none of these
Provide an appropriate response.While using the elimination method, if the following occurs, what can you say about the graph of the system of equations??6x - 8y = 5 - 6x + 8y = 7?0 = 12
What will be an ideal response?
Convert to an exponential equation.log10 
= -2
A. 
2 = 10
B. 210 = 
C. 10-2 = 
D. 10100 = 2
Use the Gompertz growth model described to find the population y as a function of time ?t (in years).
?
when 
; 
when 
?
?
A. ?
B. ?
?
C. ?
D. ?
E. ?