Determine whether the statement is true or false. If it is false, explain why or give an example that shows it is false.
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A linear regression model with a positive correlation will have a slope that is greater than 0.
Answer the following statement true (T) or false (F)
True
Mathematics
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Sketch the graph of the function. Label at least three points.f(x) = 
A. 
B. 
C. 
D. 
Mathematics
Solve.When making a telephone call using a calling card, a call lasting 5 minutes cost $1.70. A call lasting 14 minutes cost $3.95. Let y be the cost of making a call lasting x minutes using a calling card. Write a linear equation that models the cost of a making a call lasting x minutes.
A. y = 4x - 
B. y = -0.25x + 2.95
C. y = 0.25x - 10.05
D. y = 0.25x + 0.45
Mathematics
Multiply.(3 - 6i)(4 + 3i)
A. -6 - 33i B. 30 + 15i C. -18i2 - 15i + 12 D. 30 - 15i
Mathematics
Solve by using the quadratic formula.7x2 + 12x = - 3
A. 
B. 
C. 
D. 
Mathematics