The least squares regression line for the points shown in the graph is 
. Calculate S, the sum of the squared errors.
?
?
?
A. 
?
B.
?
C. ?
?
D. ?
?
E. ?
?
Answer: A
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Factor completely. If a polynomial cannot be factored, say it is prime.2y3 - 4y2 - 30y
A. 2y(y - 3)(y + 5) B. 2y(y + 3)(y - 5) C. (y - 3)(2y2 + 10) D. (2y2 + 6y)(y - 5)
Solve the problem.A survey is conducted in front of a department store. The person conducting the survey asks 290 women if they used a certain cosmetic product and 36 respond that they do use the product. Express the number of women surveyed that said they used the product as a fraction in lowest terms.
A. 
B. 
C. 
D. 
Solve the problem.Devon purchased tickets to an air show for 8 adults and 2 children. The total cost was 
. The cost of a child's ticket was 
less than the cost of an adult's ticket. Find the price of an adult's ticket and a child's ticket.
A. adult's ticket: $24; child's ticket: $18 B. adult's ticket: $21; child's ticket: $15 C. adult's ticket: $23; child's ticket: $17 D. adult's ticket: $22; child's ticket: $16
For the polynomial, list each real zero and its multiplicity. Determine whether the graph crosses or touches the x-axis at each x -intercept.f(x) = 
x2(x2 - 3)
A. 0, multiplicity 2, touches x-axis;
, multiplicity 1, crosses x-axis;
-
, multiplicity 1, crosses x-axis
B. 0, multiplicity 2, touches x-axis
C. 0, multiplicity 2, crosses x-axis;
, multiplicity 1, touches x-axis;
-
, multiplicity 1, touches x-axis
D. 0, multiplicity 2, crosses x-axis