Answer:
C. 17 feet
Step-by-step explanation:
This problem allows us to use the Pythagorean theorem to solve. We are give both legs or a right triangle. One leg is the height of the window =15ft and the other is the distance away from the building = 8ft. We are trying to find the length of the ladder, which will be the hypotenuse.
a^2 +b^2 =c^2 where a and b are the lengths of the legs and c is the hypotenuse
8^2+15^2 = c^2
64+225 = c^2
289 = c^2
Take the square root of each side
sqrt(289) = sqrt(c^2)
17 = c
Answer:
54 square units
Step-by-step explanation:
144 - 18 - 4(18) = 54 square units
Answer:
D
Step-by-step explanation:
<u>How to find the inverse of a function.</u>
- Replace f(x) with y
- Swap x and y places. (sign doesn't matter here.)
- solve for y.
f(x) = 8√x
y = 8√x
x = 8√y
x^2 = (8√y)^2
x^2 = 64y
y = x^2 / 64
= (1/64) x^2
Answer: A
Steps:
12(8+x)=126
96+ 8x=126
-96 -96
8x= 30
x=3.75
Answer:
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