Answer:
-4a^2 -7a^2 - 2ab +3ab +9b^2 -5b^2
11a^2 + ab +4b^2
Step-by-step explanation:
 
        
                    
             
        
        
        
I think 13 pounds for extras and all not sure just my thought :)
        
             
        
        
        
The measure of m<MAR= 28 de
<h3>What is angle bisector?</h3>
Angle bisector in geometry refers to a line that splits an angle into two equal angles. Bisector means the thing that bisects a shape or an object into two equal parts.
Given:
AT bisects <MAR
and, m<MAT= (6x-4) and and m<RAT = (2x+8)
As, <MAR is bisected by ray AT.
So, 
<MAT = <RAT
6x-4= 2x+8
6x- 2x = 8+4
4x = 12
x= 3
So, <MAT = 6x-4= 6*3-4= 14
and, <RAT = 2x+8 = 14
Hence, MAR= <MAT + <RAT = 14+14=28
Learn more about angle bisector here:
brainly.com/question/28557178
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First replace all variables with the respective numbers.
V = (1/3) x 3.14 x 15^2 x 9
according to PEMDAS, work out your exponent next
V = (1/3) x 3.14 x 225 x 9
multiply
V = 1.04667 x 225 x 9
V = 235.5 x 9
V= 2,119.5
ANSWER: the volume is 2,119.5 cm