Find v ? u.v =  and u = 

A. 0
B.
C. i - j
D. i - j


Answer: A

Mathematics

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Solve the problem.A 60-m-long, 8.4-mm-diameter rope hangs free from a ledge. The density of the rope is 60 g/m. How much work is needed to pull the entire rope to the ledge?

A. 108g J B. 9g J C. 108,000g J D. 3.6g J

Mathematics

Use a graphing calculator to solve the equation to the nearest tenth.3x2 - 8x - 9 = 0; x between 3 and 4

A. 3.5 B. 3.4 C. 3.7 D. 3.6

Mathematics

The hyperbola shown in the calculator-generated graph was graphed in function mode with a square viewing window. What are the two functions y1 and y2 that were used to obtain the graph whose equation is given?10 -10

A. y1 = 6, y2 = -6
B. y1 = , y2 = - 
C. y1 = , y2 = - 
D. y1 = , y2 = - 

Mathematics

Solve the problem.A truck rental company rents a moving truck one day by charging $29 plus $0.09 per mile. Write a linear equation that relates the cost C, in dollars, of renting the truck to the number x of miles driven. What is the cost of renting the truck if the truck is driven 190 miles?

A. C(x) = 0.09x + 29; $30.71 B. C(x) = 0.09x + 29; $46.10 C. C(x) = 29x + 0.09; $5,510.09 D. C(x) = 0.09x - 29; -$11.90

Mathematics