Solve the problem.The regression line relating dexterity scores (x) and productivity scores (y) for the employees of a company is 
Use the regression line to predict the productivity score for a person whose dexterity score is 
.
A. 78.1
B. 210.9
C. 58.2
D. 56.3
Answer: A
Mathematics
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Find the range of the given function.f(x) = -2x2 + 3x + 9
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.A piece of cable which is 
m long is to be cut into pieces 
m long. How many pieces will there be?
A. 50 pieces
B. 4 pieces
C. 
piece
D. 20 pieces
Mathematics
Solve.The textbook for a history class costs $35. There are 31 students in the class. Find the total cost of the history books for the class.
A. $1085 B. $66 C. $1054 D. $1050
Mathematics
Verify the identity.cos(? - ?) - cos(? + ?) = 2 sin ? sin ?
What will be an ideal response?
Mathematics