Evaluate.52
A. -25
B. -10
C. 10
D. 25
Answer: D
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If r(t) is the position vector of a particle in the plane at time t, find the indicated vector.Find the velocity vector.r(t) = (cot t)i + (csc t)j
A. v = (-csc2 t)i - (cot t csc t)j B. v = (csc2 t)i + (cot t csc t)j C. v = (sec2 t)i + (tan t sec t)j D. v = (-sec2 t)i - (tan t sec t)j
Solve the problem.What region in the xy-plane maximizes the value of 
?R
A. The ellipse 
+ 
= 1
B. The ellipse 100x2 + 64y2 = 6400
C. The ellipse 64x2 + 100y2 = 1
D. The ellipse 
+ 
= 1
A physician writes a medical order as follows: nitroglycerin gr 1/400 subL prn. Assuming that only 0.3 mg tablets are available, how many tablets are needed to fill this prescription?
A. 2 B. 1/2 tablet C. 10 D. cannot be calculated
Solve the following problems. Be sure to make a diagram of the situation with all the given information labeled. ? The diagonal of a rectangle is 352 millimeters, while the longer side is 284 millimeters. ? Find the shorter side of the rectangle. Apply the rules regarding the use of significant digits when determining your answer. ? __________ mm ? Find the smaller of the two angles the diagonal makes with the sides. Apply the rules regarding the use of significant digits when determining your answer. ? __________ ° ? Find the larger of the two angles the diagonal makes with the sides. Apply the rules regarding the use of significant digits when determining your answer. ? __________ °
What will be an ideal response?