Simplify the rational expression.
A. 3x2 - 14
B. 
C. 
D. 3x - 1
Answer: D
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Solve the problem.Three forces act on a bolt as shown in the figure. Find the resultant force.
?
A. R = 5000 lb, ? = 35° B. R = 2900 lb, ? = 104° C. R = 2900 lb, ? = -76° D. R = 5000 lb, ? = 215°
Let x represent one number and let y represent the other number. Use the given conditions to write a system of equations. Solve the system and find the numbers.Two numbers total 16, and their difference is 20. Find the two numbers.
A. 18 and - 2 B. 8 and - 12 C. 16 and 2 D. 9 and 7
Provide an appropriate response.Change 9 meters to inches. (Round to nearest tenth; 1 m = 39.37 in.)
A. 354.3 B. 354.4 C. 0.3 D. 0.2 E. none of the above
Find the vertex of the parabola, and determine whether the parabola opens upward, downward, to the left, or to the right.y = -(x + 5)2 - 7
A. (-5, 7), up B. (-5, -7), down C. (5, 7), down D. (5, -7), up