Solve the system of linear equations using matrices.
A. (4, -5)
B. (-5, -4)
C. ?
D. (-5, 4)
Answer: D
Mathematics
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The graph shown is one period of a function of the form y = a sin k(x-b). Determine the function.
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Solve the problem.If w = 9i + 2j, find 3w.
A. 27i + 2j B. 12i + 2j C. 12i + 5j D. 27i + 6j
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Multiply.
A. 299
B. 36
C. - 
D. - 
Mathematics
Solve the problem.A balloon is secured to rope that is staked to the ground. A breeze blows the balloon so that the rope is taut while the balloon is directly above a flag pole that is 40 feet from where the rope is staked down. Find the altitude of the balloon if the rope is 60 feet long.
A. 20
ft
B. 20
ft
C. 10
ft
D. 2
ft
Mathematics