Answer:The equation x² + 7 = 0 has no solution
Explanation:1- using graph:To solve the equation means graphically means to find the x-intercepts.
The attached image shows the graph of the given function.
We can note that there are no x-intercepts. This means that the given function has no real solutions
2- using algebra:To solve the equation algebraically means to find the values of x that would make the equation equal to zero.
Solving the given equation, we would find that:
x² + 7 = 0
x² = -7
x = <span>± </span>√-7
The square root of a negative number will always give imaginary values. This means that the equation has no real solutions
Hope this helps :)
 
        
                    
             
        
        
        
Step-by-step explanation:
Dosage per kg per day = 8mg
2 doses = 4mg 
If a person weighs 82 pounds =? mg
1kg = 2.205 pounds 
So 82 ÷ 2.205 = 37. 195 kg 
So he should receive 37. 195 mg every 12 hours
 
        
             
        
        
        
Answer:
12+3-4+1=12
Step-by-step explanation:
 
        
             
        
        
        
Answer:
0.24 + 0.32 =0.56
Step-by-step explanation:
Is this what you needed?
 
        
                    
             
        
        
        
For this case we must write as a percentage the following expression:

Dividing we have to:

Now we multiply by 100%. So:

We run the decimal two spaces to the right, finally we have:
84%
Answer:
84%