P = 2l + 2w
p - 2w = 2l
l = p-2w/2
It would be the third response
Answer:
(1, 2), (-2, -1)
Step-by-step explanation:
We can choose x = 1 and find y:
y = 2/1 = 2
(x, y) = (1, 2)
We can choose x = -2 and find y:
y = 2/(-2) = -1
(x, y) = (-2, -1)
Answer: √117
Step-by-step explanation:
Since no diagram present, am assuming hypotenuse AB and right angle C. Let side opp angle B be b, and side opposite angle A be a. Altitude CD is x.
a^2 + b^2 = 22^2 (Pythagorean)
Using Pythag on two smaller triangles,
x^2 + 13^2 = a^2
x^2 + 9^2 = b^2
Substituting in first equation,
x^2 + 13^2 + x^2 + 9^2 = 22^2
x^2 = 117, so x = √117