Answer:
Step-by-step explanation:
-b -b +5
= -2b + 5
 
        
             
        
        
        
Answer:
12) just plug in the numbers to the equation
C = (-4,5)   D = (-2,3)
11) 8.426
10) 3, 4, 5
level 3-4) 24
Step-by-step explanation:
11) 7^2 + 11^2 = c^2
    49 + 22 = c^2
     √71 = √c^2
     c = 8.426
10) 3, 4, 5 is a special right triangle but
3^2 + 4^2 = 5^2
25 = 25
level 3-4)
7^2 + h^2 = 25^2
49 + h^2 = 625
√h^2 = √576
h = 24
 
        
                    
             
        
        
        
Answer: 
Simplify the expression.
Exact Form:
1/4
Decimal Form:
0.25
Step-by-step explanation: If you are satisfied with my answer mark me the Brainliest!!! With A 5-star rating also saying Thanks.
 
        
             
        
        
        
Answer:
80cm²
Step-by-step explanation:
The formula of a paralleagram is bxh 
So all you have to do is 5 x 16 to get 80
I hope this helps :)
 
        
                    
             
        
        
        
Answer:
5. 9 8. 
Step-by-step explanation:
a²+b²=c² 
so for #5 12²+b²=15²
144+b²=225 (subtract 144 from both sides)
b²=81 
b=9
For #8
9²+b²=11²
81+b²=121 (subtract 81 from both sides)
b²=40
b=
=
