Convert the number to scientific notation.0.000000084509
A. 8.4509 × 108
B. 8.4509 × 10-8
C. 8.4509 × 10-9
D. 8.4509 × 10-7
Answer: B
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State whether you think the difference between what occurred and what you would expect by chance is statistically significant.There are two candidates for mayor, Maria Hernandez, and Eric Wong. Of 100 people polled, 53 say they will vote for Maria Hernandez.
A. Not statistically significant B. Statistically significant
Find an equation for the ellipse described.Center (0, 0); major axis horizontal with length 18; length of minor axis is 4
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Determine, without graphing, whether the given quadratic function has a maximum value or a minimum value and then find that value.f(x) = -5x2 + 5x
A. minimum; 
B. maximum; - 
C. minimum; - 
D. maximum; 
Find the indicated intercept(s) of the graph of the function.y-intercept of f(x) = 
A. (0, 15)
B. 
C. 
D. none