Solve the problem.The paired data below consist of the temperatures on randomly chosen days and the amount a certain kind of plant grew (in millimeters). By using linear regression, the following function is obtained: 
where x is temperature and y is growth in millimeters. Use this function to predict the growth of a plant if the temperature is 66.
A. 27.14
B. 29.58
C. 28.53
D. 29.05
Answer: C
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Solve the problem.The diagonal of the floor of a rectangular office cubicle is 2 ft longer than the length of the cubicle and 5 ft longer than twice the width. Find the dimensions of the cubicle. Round to the nearest tenth, if necessary.
A. width = 3.9 ft, length = 9.7 ft B. width = 9.7 ft, length = 22.4 ft C. width = 2 ft, length = 9 ft D. width = 4 ft, length = 11 ft
Multiply. Simplify, if necessary.
? 
? 
A. 
B. 
C. 
D. 
The equation has a solution r in the interval indicated. Approximate this solution correct to two decimal places.x4 - x3 - 7x2 + 5x + 10 = 0; 2 < r ? 3
Fill in the blank(s) with the appropriate word(s).
Graph the function, and state its domain and range.f(x) = 
A. Domain: [0, ?); Range: [-4, ?)
B. Domain: [0, ?); Range: [4, ?)
C. Domain: [4, ?); Range: [0, ?)
D. Domain: [-4, ?); Range: [0, ?)