1. Find the total number of class members
    9 + 11 = 20
2. Find 9 as a percentage of 20
    9 / 20 = 0.45
    0.45 x 100 = 45%
<u>45% of the class are girls.</u>
        
             
        
        
        
Answer:
C) Multiplicative Inverse Property
Step-by-step explanation:
Because 1/10 is the inverse of 10.
For example, 15*(1/15)=1.
 
        
             
        
        
        
<u>Given:</u>
It is given that the ridge is 360 inches tall. 
<u>Assumptions:</u>
Assume you are 170.1 cm tall which equals 67 inches tall, the height from your eye to the floor is  inches.
 inches.
The distance from your eye level to the bottom of the ridge is 427 inches.
Assume the angle A is 60°.
<u>To find the distance from you to your dog.</u>
<u>Solution:</u>
A right-angled triangle can be formed where the angle is 60°, the distance between you and the dog is the hypotenuse of the triangle and your height from the floor is the adjacent side of the triangle.
Assume the hypotenuse of the triangle measures x inches.
To determine the length of the hypotenuse, we determine the cos of the angle.



So if the ridge is 360 inches tall and you are 67 inches tall and the angle A is 60°, the distance between your dog and you is 854 inches.
 
        
             
        
        
        
Answer:
y= -7
Step-by-step explanation:
So first distribute the 8
4=8y+32-4y
now combine like terms (the -4y+8y)
4=32+4y
Subtract 32 on both sides to isolate 4y
-28=4y
now divide 4 on both sides to isolate Y
-7=y
so y= -7
 
        
             
        
        
        
The answer is option C. 9xy sqrt 2x