Perform the indicated operations and simplify the result. Leave the answer in factored form.
A. 2x
B. -6
C. x2
D. 6
Answer: A
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Determine the values of x for which the function is continuous. If the function is not continuous, determine the reason.f(x) = 
A. Not continuous at x ? 4; function not defined B. Not continuous at x = 4; small change C. Not continuous at x = 4; function not defined D. Not continuous at x < 4; function not defined
Solve the problem.A force acts on a certain object in such a way that when the object has moved a distance of r (in m), the force f (in newtons) is given by f = 8r2 + 9r. Find the work (in joules) done through the first four meters by evaluating 
A. 242.7 J B. 40 J C. 179.7 J D. 64 J
Solve the problem using the vector form v = 
[(cos ?)i + (sin ?)j].A weight of 500 lb is supported by a frame made of two rods and hinged at points A, B, and C. Find the forces exerted by the two rods rounded to the nearest pound. 
A. Horizontal rod: 10-lb tension; other rod: 555 -lb compression B. Horizontal rod: 673 -lb tension; other rod: 450-lb compression C. Horizontal rod: 450-lb tension; other rod: 673-lb compression D. Horizontal rod: 555-lb tension; other rod: 747-lb compression
Write the statement in the form "if p, then q."I will lose weight if I diet.
A. If I diet, then I will lose weight. B. If I lose weight, then I will diet. C. If I diet, then I gain weight. D. If I don't diet, then I won't lose weight.