Answer:
HCFD
Step-by-step explanation:
a² + b² = c² => a² = c² - b² => a = √(c² - b²)
=> the height of the window = √[(the given length of the latter)² - (the distance from the latter to the base of the building, 3.5 meters)²]
A) √(5.5² - 3.5²) ≈ 4.24 => H
B) √(8.8² - 3.5²) ≈ 8.07 => C
C) √(9.3² - 3.5²) ≈ 8.62 => F
D) √(7.9² - 3.5²) ≈ 7.08 => D
Answer:

Step-by-step explanation:
You are looking for the point of intersection of these two functions.
Substitution:
- This are now your formulas

- You are going to substitute x, so you can solve for y




- Now you are going to substitute y to find x



- Now lets check if it is correct

So it is true, making (-4 , -5) your point of intersection.
hope it helps
Answer:
The answer is 60.
Step-by-step explanation:
1. 8*10=80 #original price
2. 80.....100%
x...... 75%
=> 100x = 6000 => 60