Divide -3
-3/-3a = 15/-3
a = -5
Answer:
parallel line: -(7/8)
perpendicular line: (8/7)
7x + 8y = 6: y = (3/4) - (7x/8)
Answer:
about 22.2 feet
Step-by-step explanation:
The wire can run diagonally across the floor and, from the intersection with the wall, diagonally up the wall. The total length is computed per the hint to be ...
d = √(18^2 +13^2) = √493 ≈ 22.20 . . . . feet
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If the wire were to go up the short wall, its length would be ...
d = √(11^2 +20^2) = √521 ≈ 22.83 . . . . feet
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<em>Comment on the attachment</em>
The red represents the floor; the green represents the long wall.