A^2 + b^2 = c^2
a^2 + 9^2 = 18^2
a^2 + 81 = 324
a^2 = 243
a = 15.589 = 15.6 feet is the angle the ladder is at :)
Answer: (r + 4)(r + 8)Alright, I would first rearrange the equation by bringing all your terms to one side by adding 12r and 32 to both sides. This will result in the rearranged equation:

You can then factor the equation into the two binomials:
(r + 4)(r + 8).
4 + 8 equals the b term, 12, and 4 x 8 equals the c term, 32.
Answer:
9:6
Step-by-step explanation:
You can find x by setting the ratios equal to each other.

Now you just need to solve for x.

The ratio is 9:6.
I think its 11250 I'm so sorry if that's wrong bc I'm new at this
Answer:
AC = 28 feet
Step-by-step explanation:
Point C is the midpoint of AB, so AC is half the length of AB:
AB/2 = (56 ft)/2 = 28 ft = AC