Solve the problem.If u = -3i - 6j and v = 10i + 9j, find u + v.
A. 6i + 3j
B. 13i + 3j
C. 7i + 3j
D. -13i + 6j
Answer: C
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Solve the problem.During one year 22 new employees started working at McIntosh Manufacturing Company. At the beginning of the year there are 250 employees in the factory and 42 employees in the office. What is the total number of employees at the end of the year?
A. 64 employees B. 314 employees C. 292 employees D. 270 employees
The sides of the following equilateral triangle are length 6. Find the height x of the triangle. Round your answer to 2 decimal places.
A) 6.71
B) 5.66
C) 8.49
D) 5.20
E) 5.74
Factor completely.x3y - 5x2y2 - 24xy3
A. y(x - 8y)(xy + 3y2) B. xy(x - 8y)(x + 3y) C. x(xy - 8y2)(x + 3y) D. xy(x2 - 5x - 24y2)
Solve the problem.The long jump record, in feet, at a particular school can be modeled by 
where x is the number of years since records began to be kept at the school. What is the record for the long jump 
after record started being kept? Round your answer to the nearest tenth.
A. 23.3 ft B. 28.0 ft C. 27.9 ft D. 28.2 ft