Find the slope of the line containing the two points.(7, -2); (-9, -2)
A. 
B. 0
C. -16
D. undefined
Answer: B
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As part of a statistics project, a 6th grade teacher brings to class a container with 300 red marbles and 500 white marbles which are thoroughly mixed. To figure out how many marbles in the container are red without actually counting them all, a student randomly draws 40 marbles from the container. Of the 40 marbles drawn, 16 are red.The sampling error is most likely a result of
A. a confounding variable. B. sampling bias. C. sampling variability. D. nonresponse bias. E. none of these
Divide. Write with positive exponents.
A. 42x10 - 5x2 - 2 + 
+ 
B. 7x3 - 30x9 - 12x8 + 18x6 + 5x4
C. 7x3 - 5x2 - 2
D. 7x2 - 5x - 2 + 
+ 
Tell whether the expression is a polynomial. If it is, give its degree.5x2 - 
A. Polynomial; degree 2 B. Polynomial; degree 1 C. Polynomial; degree -1 D. Not a polynomial
Find the identical expression for the following.
?
?
A. 
B. 
C. 
D. ?
E. 