25% chance of guessing each question correctly
50% chance to guess one correctly
        
             
        
        
        
Answer:
=14n⁴+8n²-9n+7
Step-by-step explanation:
(8n⁴-6n+8n²)+(6n⁴-3n+7)
=8n⁴-6n+8n²+6n⁴-3n+7
=8n⁴+6n⁴+8n²-6n-3n+7
=14n⁴+8n²-9n+7
 
        
             
        
        
        
The equation has one extraneous solution which is n ≈ 2.38450287.
Given that,
The equation;

We have to find,
How many extraneous solutions does the equation?
According to the question,
An extraneous solution is a solution value of the variable in the equations, that is found by solving the given equation algebraically but it is not a solution of the given equation.
To solve the equation cross multiplication process is applied following all the steps given below.

The roots (zeros) are the  x  values where the graph intersects the x-axis. To find the roots (zeros), replace  y 
with  0  and solve for  x. The graph of the equation is attached.
n  ≈  2.38450287
Hence, The equation has one extraneous solution which is n   ≈  2.38450287
For more information refer to the link.
brainly.com/question/15070282
 
        
             
        
        
        
Answer:
1/4 I'm pretty sure 
Step-by-step explanation:
because half of the class already went to the afternoon session and 3/4 went to see the movie 
 
        
                    
             
        
        
        
p= 1/7
Alright, so first, you need to flip the equation.<span><span>It will turn into p+<span>4/7</span></span>=<span>5/7
Next, you want to get the variable by itself so you need to subtract 4/7 from both sides. 5/7-4/7=1/7
p=1/7</span></span>