Solve the problem.A trucking firm wants to purchase 10 trucks that will provide exactly 28 tons of additional shipping capacity. A model A truck holds 2 tons, a model B truck holds 3 tons, and a model C truck holds 5 tons. How many trucks of each model should the company purchase to provide the additional shipping capacity? Set up a system of linear equations and solve using Gauss-Jordan elimination. There may be more than one solution.
What will be an ideal response?
2 model A, 8 model B, and 0 model C trucks; or
4 model A, 5 model B, and 1 model C trucks; or
6 model A, 2 model B, and 2 model C trucks
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Choose the equation that matches the graph.
A. y2 = 4x B. y2 = -4x C. -4y2 = x D. x2 = -4y
Use the order of operations to simplify the expression.
÷ 
- 
? 
A. 2
B. 3
C. 
D. 2
Provide an appropriate response.Explain how the multiplication and addition principles are used in solving systems of equations using the elimination method.
What will be an ideal response?
Identify the conic that the polar equation represents. Also, give the position of the directrix.r = 
A. ellipse, directrix perpendicular to the polar axis 3 right of the pole B. hyperbola, directrix perpendicular to the polar axis 3 left of the pole C. ellipse, directrix perpendicular to the polar axis 3 left of the pole D. hyperbola, directrix perpendicular to the polar axis 3 right of the pole