The slope of the regression line gives an estimate of the rate of change of the data being modeled.
Answer the following statement true (T) or false (F)
True
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Simplify the expression. Use positive exponents. Assume variables represent nonnegative numbers.(5x5)(4x2)
A. 9x10 B. 9x7 C. 20x10 D. 20x7
Solve the problem. Round your answer, if appropriate.The radius of a right circular cylinder is increasing at the rate of 
, while the height is decreasing at the rate of 
. At what rate is the volume of the cylinder changing when the radius is 13 in. and the height is 8 in.?
A. -54 in.3/sec B. 702? in.3/sec C. 182 in.3/sec D. 182? in.3/sec
Solve the problem.Assume that the price per unit d of a certain item to the consumer is given by the equation 
where x is the number of units in demand. The price per unit from the supplier is given by the equation 
where x is the number of units supplied. Find the equilibrium price and the equilibrium quantity.
A. equilibrium price: $35 per unit; equilibrium quantity: 50 units B. equilibrium price: $50 per unit; equilibrium quantity: 30 units C. equilibrium price: $20 per unit; equilibrium quantity: 50 units D. equilibrium price: $30 per unit; equilibrium quantity: 50 units
Solve the inequality. Express your answer in set notation.x2 ? 64
A. {x| x < -8 or x > 8} B. {x| x ? -8 or x ? 8} C. {x| -8 ? x ? 8} D. {x| x < -8 or x ? 8}