Answer:
11
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
-7 and -6 #markasbrainliest
 
        
                    
             
        
        
        
I do not understand ur language I speak English very well sorry I can't help you with your homework
        
             
        
        
        
Answer:
 = 78
 = 78
 = 3.5
 = 3.5
Step-by-step explanation:
First we need to find  .
.
We can use the equation  to solve for
 to solve for  .
.
We can then change that equation to  , since the Commutative Property of Addition says that you can have any addition in any order.
, since the Commutative Property of Addition says that you can have any addition in any order.
Now, we can solve the equation.

Now that we solved  , we can now solve for
, we can now solve for  .
.
Since 25 equals  , we can solve the equation
, we can solve the equation  .
.
Here is how you solve it:

Since  equals 3.5, which is the simplest form, that is the answer.
 equals 3.5, which is the simplest form, that is the answer.
Hope this helps, and please mark me brainliest! :)
 
        
             
        
        
        
Answer:
(b) Circle C is shown. Line segment A C is a radius with length 7 centimeters.
Step-by-step explanation:
Given



Required
Which circle could she use
To do this, we simply calculate the areas of all the given circles
The area of a circle is:

Where


The area is calculated as thus:





The area is calculated as thus:




<em></em>

The area is calculated as thus:





The area is calculated as thus:




<em>From the calculations above; only the circle in option (b) has an area within the required range of 135 to 155cm^2</em>