Solve the problem using your calculator.Two separate tests are designed to measure a student's ability to solve problems. Several students are randomly selected to take both tests and the results are shown below. Use linear regression to find a linear function that predicts a student's score on Test B as a function of his or her score on Test A.
A. y = 0.930 - 19.4x
B. y = -19.4 - 0.930x
C. y = -0.930 + 19.4x
D. y = 19.4 + 0.930x
Answer: D
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Convert the improper fraction to a mixed number.
A. 5
B. 
C. 6
D. 7
Multiply using FOIL. Assume all variables have nonnegative values.(
+ 
)(
+ 
)
A. 
+ 
+ 
+ 
B. 
+ 
+ 6 + 
C. 
+ 
+ 5 + 
D. 
+ 
+ 25 + 
Find: a. The center and radius of the circle. b. The x- and y-intercepts of the graph of the circle.2x2 - 4x + 2y2 - 6 = 0
A. a. center = (-1, 0); radius = 2
b. (3, 0), (-1, 0), (0, 
), (0, -
)
B. a. center = (1, 0); radius = 2
b. (3, 0), (-1, 0), (0, 
), (0, -
)
C. a. center = (1, 0); radius = 4
b. (3, 0), (-1, 0), (0, 
), (0, -
)
D. a. center = (-1, 0); radius = 4
b. (3, 0), (0, 
)
Find the length of the indicated unknown side in the right triangle. Round to two decimal places, if necessary.Find side c.
A. c = 22.52 B. c = 6.5 C. c = 26 D. c = 7.51