Answer:
3.299 or 3.3
Step-by-step explanation:
54.99(.06)=3.2994
 
        
             
        
        
        
Step 1
<u>First situation</u>
when a ladder is leaning against a wall
Let
x-------> the distance of the bottom of the ladder from the wall
L-------> the length of the ladder
<u>Find the length of the ladder</u>
Applying the Pythagorean Theorem
 ------> equation
 ------> equation 
Step 2
<u>Second situation</u>
when the ladder will be lying flat on the ground
<u>Find the length of the ladder</u>
In this situation the length of the ladder is equal to

square both sides
 ------> equation
 ------> equation 
Step 3
equate equation  and equation
 and equation 

therefore
<u>the answer is</u>
 the length of the ladder is 
see the attached figure to better understand the problem
 
        
             
        
        
        
The first is the first one tho
        
             
        
        
        
Answer:
A
Step-by-step explanation:
12 / tan 42 = 13.32......
12 / sin 27 = 26.43....
26.43² - 12² = 552.24....
square root of 552.24... = 23.5
23.5 - 13.3 = 10.2
 
        
             
        
        
        
Answer:
15.50p+8.75n=66.55
Step-by-step explanation:
p=parents
n = neighbors