Use cross products to determine whether the proportion is true or false.
= 
A. True
B. False
Answer: B
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Solve the problem.Find the least squares line through the points 
and 
A. y = -21x + 6 B. y = -27x - 58 C. y = -27x + 6 D. y = -21x - 58
Solve the problem.An open-top box is to be constructed from a 9 cm by 11 cm piece of cardboard by cutting out squares from each corner and folding up the sides as shown in the figure. Find a polynomial that represents the area of the bottom of the box in the accompanying figure. Find a polynomial that represents the volume of the box. 
A. Area of bottom: 4x2 - 38x + 90, Volume: 4x3 - 38x2 + 90x B. Area of bottom: 4x2 - 40x + 99, Volume: 4x3 - 40x2 + 99x C. Area of bottom: 4x2 + 40x + 99, Volume: 4x3 + 40x2 + 99x D. Area of bottom: 4x2 - 38x - 90, Volume: 4x3 - 38x2 - 90x
Tell whether or not the relation is a function.{(-4,1), (-1,-7), (1,-7), (8,-4)}
A. Yes B. No
Using interval notation, write the set.{x| x ? 6}
A. [6, ?) B. [6, ?] C. (6, ?] D. (6, ?)