Answer:
12 ft
Step-by-step explanation:
Note that you have a right triangle here, with hypotenuse 13 ft, and base 5 ft. Using the Pythagorean Theorem, we find the height of the upper tip of the ladder as follows:
(13 ft)^2 = y^2 + (5 ft)^2. Then y^2 = 144 ft^2, and y =height= 12 ft
The total number of points would be equal to 5n.
You would simply multiply 5 by the amount of questions. In this case, we do not know the amount, so we can use the variable n.
D. for the first one and B. for the second one i think
13. Slope: -3
14. D ; y = 18
15. ?
13. 4 - 1 = 3
-3 - 6 = -9
3/-9 = -3