Solve the problem.For a simply supported beam with a load that increases uniformly from left to right, the bending moment M (in ft?lb) at a distance of x (in ft) from the left end is given by 
. Determine the location of the maximum bending moment. In the formula, w is the rate of load increase (in 
) and l is the length (in ft) of the beam.
A. x = l
B. x = 
C. x = 
D. x = 
Answer: D
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Solve by the addition method.x2 + y2 = 104x2 - y2 = 96
A. (-10, -2), (-2, -10) B. (10, 2), (-10, 2), (10, -2), (-10, -2) C. (10, 2), (2, 10), (-10, -2), (-2, -10) D. (10, -2), (10, 2)
Mark as true any statement that is always true. Mark as false any statement that is never true or that is not necessarily true. Be able to justify your answers.
1. An “exercise” can be solved by simply applying a routine procedure, but a “problem” is not routine and requires a well-thought-out plan of attack. 2. If there are infinitely many numbers involved in a problem, the Guess and Test problem-solving strategy is indicated. 3. If 12 coins are arranged in the shape of an equilateral triangle, then there are 5 coins along each side. 4. If the fourth phase of problem solving,“Looking Back,” we should look for other ways to solve the problem even if we got the ‘right’ answer.
Graph the function.y = -2 cot (4x)
A. 
B. 
C. 
D. 
Identify the following as an expression or an equation. 
= 
- 5
A. Equation B. Expression