The given problem can be exemplified in the following diagram:
The perimeter of a figure is the sum of all of its sides, therefore, the perimeter of the figure is:
Adding the terms:
therefore, the perimeter is 54 feet.
(1/7x + 3/8) + (2/9x - 1/8)
1 answer:
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Answer:
x ≈ 2.76
Step-by-step explanation:
Using the tangent ratio in the right triangle
tan78° = =
=
( multiply both sides by x )
x × tan78° = 13 ( divide both sides by tan78° )
x = ≈ 2.76 ( to 2 dec. places )
Given:
DE contains the points D(1, -2) and E(3, 4).
FG contains the points F(-1, 2) and G(4, 0).
To find:
Is DE perpendicular to FG.
Solution:
Slope of DE:
Here
m = 3
Slope of FG:
Here
<em>Two lines are perpendicular if product their slopes are -1.</em>
Slope of DE × Slope of FG
≠ -1
The solution is no, because the product of the slopes is not -1.