Simplify.4.6 ? 2.3 + 17.5 ? 4.5
A. 409.9
B. 89.33
C. 372.8
D. 126.4
Answer: B
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Solve the problem.Bob owns a watch repair shop. He has found that the cost of operating his shop is given by 
where x is the number of watches repaired. How many watches must he repair to have the lowest cost?
A. 46 watches B. 79 watches C. 20 watches D. 39 watches
Solve the problem.The range R of a projectile is related to the initial velocity v and projection angle ? by the equation 
where g is a constant. How is 
related to 
if ? is constant?
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Answer the question.Forces, measured in newtons, on a beam produce the following equilibrium equations: 
Are the reaction forces R1 = 3070 N and R2 = 1475 N?
A. Yes B. No C. Cannot be determined
Evaluate the surface integral of the function G over the surface S.G(x, y, z) = x2y2z2; S is the surface of the rectangular prism formed from the planes x = ±3, y = ±1, and 
A. 135 B. 405 C. 270 D. 9