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
Hello :)
The jacket would be approximately 55.99 after the 20% off. We can find this by multiplying .20 and 69.99, then taking that answer and subtracting it by 69.99
Hope this helps :)
Substitute the first equation, y = 1.9x - 6 into the second one for y.
3(1.9x - 6) = 5.7x - 18
Distribute the 3.
5.7x - 18 = 5.7x - 18
This means that there are infinite solutions, since the two equations are the exact same lines.
Hope this helps!
