Answer:
h = 9 ft
Step-by-step explanation:
Assume the diagram is like the one below.
∆ABD is a right triangle.
We can use Pythagoras' Theorem to find the height h.

Answer:
75%
Step-by-step explanation:
90/ 120 is the same as 75 or 3/4 so 75% of 120 is 90
Answer:
558
Step-by-step explanation:
5.58 × 10²
558
Answer:
50 - 2c
Step-by-step explanation:
i think its incomplete
Answer:
x = 4
, y = −
2
Step-by-step explanation:
Add the equations in order to solve for the first variable. Plug this value into the other equations in order to solve for the remaining variables.