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A policeman investigating an accident measures the skid marks left by a car on the horizontal road. He determines that the distance between the point that the driver slammed on the brakes thereby locking the wheels and the point where the car came to a stop was 28.0 m. From a reference manual he determines that the coefficients of static and kinetic friction between the tires and the road under the prevailing conditions was 0.7 20 and 0.310, respectively. How fast was the car going when the driver applied the brakes?

An object has a mass of 60 kg on Earth. What are the mass and weight of this object on the surface of the Mars where the acceleration due to gravity is only 2/3 of what it is on Earth?

When applying Estim/US combo to the VMO, the PTA can avoid the patient experiencing a deep ache by:

Find the x- and y-intercepts of f.f(x) = (x + 2)(x – 3)(x + 3) (list multiple intercepts in order from least to greatest)   x-int: [xint] y-int: [yint]  

For the given functions f and g, find the requested composite function.f(x) = 6x + 14,  g(x) = 5x – 1;Find (f ∘ g)(x). You MUST show your work for this question.  On your scratch paper, copy the problem and show the steps you used to solve it.  Type in the answer, then hold the paper up to your webcam for at least 5 seconds so that your work can be verified.  Failure to do so could cause a score of 0 points for this question. 

For the polynomial, list each real zero and its multiplicity. Determine whether the graph crosses or touches the x-axis at each x -intercept.f(x) = 2(x + 5)(x – 3)2   smaller zero: [smaller], with multiplicity = [mult1].  The graph [crossoortouch1] (crosses or touches?) the x-axis at this point.  larger zero: [larger], with multiplicity = [mult2].  The graph [crossortouch2] (crosses or touches?) the x-axis at this point. 

Find the vertex and axis of symmetry of the graph of the function.f(x) = -5×2 – 10x + 8   vertex = [point] axis of symmetry: [equation]

Use vertex form y = a(x – h)2 + k to determine the quadratic function whose graph is given. Write your final answer in standard form. Vertex:  (-2, -3) y-intercept: (0, 5) You must show your work for this question.  On your scratch paper, copy the problem and show the steps you used to solve it.  Type your answer below, then hold the paper up to your webcam for at least 5 seconds so that your work can be verified.  Failure to do so could cause a score of 0 points for this question. 

For the given functions f and g, find the requested composite function value.f(x) = 2x + 2,  g(x) = 4×2 + 3;Find (g ∘ f)(2).   (g ∘ f)(2) = [blank]

Use vertex form y = a(x – h)2 + k to determine the quadratic function whose graph is given. Write your final answer in standard form. Vertex:  (-1, 1) y-intercept: (0, 3) You must show your work for this question.  On your scratch paper, copy the problem and show the steps you used to solve it.  Type your answer below, then hold the paper up to your webcam for at least 5 seconds so that your work can be verified.  Failure to do so could cause a score of 0 points for this question.