7-15= -8
so -8 degrees celsius
        
             
        
        
        
There are 2 way to solve this.
one using Pythagoras theorem and 2nd using trigonometry
so lets solve it by both
using Pythagoras theorem we know
base^2 + perpendicular^2 = hypotanes^2
6^2 + x^2 = 12^2 
36 + x^2 = 144
x^2 = 144- 36 = 108
x = √(108) = √( 2×2×3×3×3)
= (2×3) √ (3) = 6 √3
so answer is option 2
bow lets use trigonometry
we know 
sin theta = perpendicular / hypotanes
sin 60 = x /12
x = 12 × sin 60 
we kNow sin 60 = √3/ 2
so 
x = 12×√3 /2 = 6√3
        
             
        
        
        
Answer:
A
Step-by-step explanation:
A dilation changes the size by a select factor.
 
        
             
        
        
        
Answer:
15.95 feets
Step-by-step explanation:
Given that:
Angle of elevation = 62°
Using trigonometric relation :
Tanθ = opposite / Adjacent
From the drawing attached :
Opposite = 30 feets
Distance between girl and lighthouse = d
Tan 62 = 30 / d
1.8807264 * d = 30
d = 30 / 1.8807264
d = 15.951283
d = 15.95 feets 
 
        
             
        
        
        
Answer: B. Y=2/3x
Step-by-step explanation: