Use your calculator to evaluate the expression. If necessary, round your answer to the nearest thousandth.e1.48
A. 15.154
B. 2.903
C. 4.393
D. 4.023
Answer: C
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Find an equation for the tangent to the curve at the given point.y = x2 - x, (-3, 12)
A. y = -7x - 6 B. y = -7x - 9 C. y = -7x + 9 D. y = -7x + 6
Solve the problem.Can the perimeter of the polygon shown be determined from the given information? If so, what is the perimeter? Can the area of the polygon shown be determined from the given information? If so, what is the area? 
A. Yes, the perimeter is 46 feet. Yes, the area is 120 square feet. B. No, there is not enough information given to find the perimeter or the area. C. No, there is not enough information given to find the perimeter. Yes, the area is 120 square feet. D. Yes, the perimeter is 46 feet. No, there is not enough information given to find the area.
Evaluate the exponential function at the specified value of x.y = 2x , x = -4
A. 
B. 8
C. - 
D. 
Solve the problem.The farther someone is from a light source, the less intense its light. The equation I = 
approximates the light intensity from light source Y and I = 
approximates the light intensity from light source Z, where d is measured in meters and I is measured in watts per square meter. Find an expression for the sum of the intensities of light from sources Y and Z.
A. 
B. 
C. 
D. 