Answer:
hmmmmmm Okay From what question?
 
        
             
        
        
        
Answer:
B = 22
C = 122
D = 36
Step-by-step explanation:
The angles of a triangle add to 180. Take the measure of each angle add them together. Set them equal to 180.
2x + x + 4 + 7x - 4 = 180
10x = 180
x = 18
To find each angle, substitute x = 18. 
Angle B is 18 + 4 = 22
Angle C is 7(18) - 4 = 122
Angle D is 2(18) = 36
 
        
                    
             
        
        
        
Answer:
Value of x using quadratic formula (x = -4) and (x = -5)
Step-by-step explanation:
Given:
Equation
x² + 9x + 20 = 0
Find:
Value of x using quadratic formula
Computation:
Quadratic formula = [-b±√b²-4ac] / 2a
Given equation;
x² + 9x + 20 = 0
a = 1 , b = 9 , c = 20
By putting value
[-9±√9²-4(1)(20)] / 2(1)
[-9±√81-80] / 2
[-9±√1] / 2
(-9 + 1) / 2 , (-9 - 1) / 2
-8 / 2 , 10 / 2
-4 , - 5
Value of x using quadratic formula (x = -4) and (x = -5)
 
        
             
        
        
        
Answer:
3/4
Step-by-step explanation:
.74(75%) is equal to 75/100
The greatest common factor is 25, so divide 75 by 25 and 100 by 25.
75/25=3  100/25=4
So, 75/100 simplified is 3/4.
 
        
                    
             
        
        
        
Answer:
No solution
Step-by-step explanation:
We have

For the sum it is not correct to assume

Note that for 

it is assumed  and in your case
 and in your case  for
 for 
In fact, considering a set  we have
 we have
 that satisfy
 that satisfy 
This means that, by definition 
Therefore, 

because the sum is empty.
For

we have other problems. Actually, this case is really bad.
Note that  has no value. In fact, if we consider for the case
 has no value. In fact, if we consider for the case
 , the cosine function oscillates between
, the cosine function oscillates between ![[-1, 1]](https://tex.z-dn.net/?f=%5B-1%2C%201%5D) , and therefore it is undefined. Thus, we cannot evaluate
 , and therefore it is undefined. Thus, we cannot evaluate

and then 

has no solution