Determine whether the following is always true or not always true. Given reasons for your answers.(u × v) ? v = 0
What will be an ideal response?
Always true because u × v and v are orthogonal
Mathematics
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Solve the problem.Martha can rake the leaves in her yard in 7 hours. Her brother can do the job in 4 hours. How long will it take them to do the job working together?
A. 
hr
B. 
hr
C. 
hr
D. 
hr
Mathematics
Evaluate the expression.
A. 
B. 16
C. 4
D. 
Mathematics
Solve the inequality and graph the solution.-11x - 10 > -12x - 18
A. x < -8
B. x ? -28
C. x > -8
D. x ? -28
Mathematics
Use the rules of exponents to simplify. Write the answer with positive exponents. Assume that all variables represent positive values.x1/3 ? x2/3
A. x2/3 B. x2/9 C. x D. x-1
Mathematics