Solve the problem.Kannanaski Rapids drops 69 ft vertically over a horizontal distance of 870 ft. What is the slope of the rapids? Round your answer to three decimal places
A. -69
B. -12.6
C. -0.079
D. -0.001
Answer: C
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Solve the given applied problem.A rectangle has area A m2 with A = w(9 - w), where w is the width of the rectangle and the perimeter is 18m. Sketch the graph of A as a function of w.
A. 
B. 
C. 
D. 
Find the vertex, focus, and directrix of the parabola. Graph the parabola.y2 + 8y = 4x + 4
A. vertex: (-5, -4)
focus: (-5, -5)
directrix: y = -3
B. vertex: (-5, -4)
focus: (-5, -3)
directrix: y = -5
C. vertex: (-5, -4)
focus: (-6, -4)
directrix: x = -4
D. vertex: (-5, -4)
focus: (-4, -4)
directrix: x = -6
Provide an appropriate response.If the orders of the matrices Q, R, and S are 4 × 5, 3 × 2, and 5 × 3, respectively, then the order of QRS is
A. 3 × 3. B. 2 × 4. C. 4 × 5. D. 3 × 5. E. none of the above
Use a graphing utility to find the equation of the line of best fit. Round to two decimal places, if necessary.Managers rate employees according to job performance and attitude. The results for several randomly selected employees are given below.
A. y = -47.3 + 2.02x B. y = 2.81 + 1.35x C. y = 92.3 - 0.669x D. y = 11.7 + 1.02x