Determine if a correlation exists at the indicated level of significance.
? = 0.05
A. Correlation exists.
B. Correlation does not exist.
Answer: A
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Graph the set on the number line.{x ? x ? - 4} ? {x |x ? 4}
What will be an ideal response?
Solve the problem.If friction is ignored, the time t (in seconds) required for a block to slide down an inclined plane is given by the formula t = 
where a is the length (in feet) of the base and g ? 32 feet per second per second is the acceleration of gravity. How long does it take a block to slide down an inclined plane with base a = 11 when 
If necessary, round the answer to the nearest tenth of a second.
A. 0.3 sec B. 1.3 sec C. 1.2 sec D. 1.5 sec
Write the phrase as a mathematical expression. Use x as the variable.One-third of a number added to the difference of the number and 7
A. 
x + (x - 7)
B. 
x + (7 - x)
C. 
D. 
The number of major crimes committed in the city of Bronxville between 1997 and 2004 is approximated by the function
?
where 
denotes the number of crimes committed in year 
(
corresponds to 1997). Enraged by the dramatic increase in the crime rate, the citizens of Bronxville, with the help of the local police, organized "Neighborhood Crime Watch" groups in early 2001 to combat this menace. Show that the growth in the crime rate was maximal in 2002, giving credence to the claim that the Neighborhood Crime Watch program was working.
What will be an ideal response?