Answer: 30 
Step-by-step explanation:
10 x 3 = 30 
It might be wrong but I wanted to try it so don’t you my answer.
 
        
                    
             
        
        
        
A quadrilateral always has interior angles that add up to 360 degrees.
        
                    
             
        
        
        
Answer:
Step-by-step explanation: The purpose of scientific notation is to make the numbers and quantities used easier to comprehend, to read and to write.
Express both numbers with the same power of ten.
Add the base numbers.
Bring the power of ten down to represent the new power of ten for the sum.
Simplify so that the base number is between 1 and 10.
 
        
                    
             
        
        
        
The value for x is 102 degrees
First we can find the second value in the triangle by subtracting 141 from 180. This works because when added together these two angles come together to from a line (180 degrees) because this value is now known (39 degrees) we can subtract both from 180:
180-39-39= x = 102
        
             
        
        
        
Answer:
64868 feet
Step-by-step explanation:
The deepest point as a negative 35,840 feet mark
The tallest point has a positive 29,028 feet mark
<u>The difference between them:</u>
- 29,028 - (-35,840) = 64,868 feet
<u>Answer is</u> 64,868 feet