Answer:
4
Step-by-step explanation:
A simple matter of using Pythagoras. The hypotenuse is the ladder, and one of the legs is the wall, and we have to figure out the value of the other leg.
The Pythagorean formuda is (hypotenuse = a): a² + b² = c² (b and c are the other sides)
applying the values: a = 5 and b or c is 3 (I'll put b = 3)
5² = 3² + c²
25 = 9 + c²
25 - 9 = c²
16 = c²
√16 = c
4 = c
c = 4
Answer:
$3.85? 12/3.12 = $3.85
The answer would have came out of 3.84615384615
Then round up the answer to 3.85. So the unit price is $3.85.
Answer:

Step-by-step explanation:
Use the Pythagorean Theorem

and
are either opposite or adjacent
is the hypotenuse.
1. Look for the right angle. (the little box). The right angle "points" to the hypotenuse. In this case, the hypotenuse is 25.
2. Because we know the hypotenuse is 25. We know that 24 is our adjacent. Meaning our missing side is the opposite.
3. Plug in the numbers. 
4. Solve:






Hope this helps! Lmk if you have questions.
It would be .5 because if you divide 3 by 6 you get.5
The answer is 78. I'm pretty sure.