Solve.Boris is planning a border for his triangular-shaped garden. One side of the garden is 13.8 feet long, another side is 14.9 feet long, and the third side is 19.0 feet long. Find the amount of border material needed.
A. 47.7 ft
B. 47.8 ft
C. 45.7 ft
D. 46.7 ft
Answer: A
Mathematics
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Solve the system.4x - y + 3z = 122x + 9z = -5 x + 4y + 6z = -32
A. (2, -7, 1) B. (2, 7, 1) C. (2, -7, -1) D. (2, 7, -1)
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Find all the real zeros of
a. 
b. 
c. 
d. 
e. 
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Solve the problem.A man 6 ft tall walks at a rate of 7 ft/s away from a lamppost that is 24 ft high. At what rate is the length of his shadow changing when he is 40 ft away from the lamppost?
A. 
ft/s
B. 
ft/s
C. 
ft/s
D. 
ft/s
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Find the indicated intersection or union.{q, s, u, v, w, x} ? ?
A. ? B. {q, s, u, v, w, x} C. {q, s, u, v, w} D. {q}
Mathematics