Quiz Ans - Which of the above equations represent a...

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Math Quiz for Physics 1401 Name:_______ KEY _______________ 1. x + y = 31.4 and x - y = 7.6. Solve for x and y. x = 19.5 y = 11.9 2. x - y = 10 and x - 2y = 7. Solve for x and y. x = 13 y = 3 3. Using the figure below, write down the definitions of the following three functions sin( θ ) = y/r cos( θ ) = x/r tan( θ ) = y/x θ y x r 4. cos( θ ) 2 + sin( θ ) 2 = ___ 1 ____ 5. The sum of the interior angles in a triangle equals _ 180 _____ degrees. 6. 1 x 1 3 1 7 - x _______ x = 21/4 7. (x - 16) 2 = 25 x = _ 11 __ and 21 8. Which of the equations below represent a parabola? __ b ___ (a) y = ax 3 + b (b) y = cx 2 +d (c) y = m∙x + b (d) y = a/x + b where, a, b, c, d and m are constants. 9.
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Unformatted text preview: Which of the above equations represent a straight line? __ c ___ 10. The circumference of a circle of radius R is given by: (Circle the correct answer) π R 2 , π R, 2 π R, 2 π R 2 , 4 π R 2 , (4/3) π R 3 11. The area of a circle of radius R is given by: (Circle the correct answer) π R 2 , π R, 2 π R, 2 π R 2 , 4 π R 2 , (4/3) π R 3 12. In the drawing below, the length of the arc “S” is given by: S = R∙ θ S R θ 13. For the figure below, circle the correct answers . α + β = 2 α α = β α + β = 90 o β + γ = 180 o α β γ...
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Quiz Ans - Which of the above equations represent a...

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