Find the angle between u and v in radians.u = -2j and v = 9i - 7k
A. 0.00
B. 1.57
C. 0.09
D. 1.66
Answer: A
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Approximate the sum to the indicated accuracy.
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Find the unit vector having the same direction as v.v = -4i - 3j
A. u = -20i - 15j
B. u = 
i + 
j
C. u = - 
i - 
j
D. u = - 
i - 
j
Express 38 km/h in miles per hour.
a. 61.18 mph b. 23.6 mph c. 1.02 mph d. 1,416 mph
Set up the linear programming problem.A dietitian needs to purchase food for patients. She can purchase an ounce of chicken for $0.25 and an ounce of potatoes for $0.02. The dietician is bound by the following constraints.? Each ounce of chicken contains 13 grams of protein and 24 grams of carbohydrates.? Each ounce of potatoes contains 5 grams of protein and 35 grams of carbohydrates.? The minimum daily requirements for the patients under the dietitian's care are 45 grams of protein and 58 grams of carbohydrates. Let x = the number of ounces of chicken and 
number of ounces of potatoes purchased per patient. Write a system of inequalities that describes these
constraints.
A. 
B. 
C. 
D. 
