The correct answer is 25.12 cubic inches
        
                    
             
        
        
        
1) y= - 2x² + 8x. It's a parabola open downward (a<0)  
2) x - 2.23.y + 10.34 = 0 . Re-write it : y = (x/2.23) + (10.34/2.23), a linear equation.
To find the intersections between 1) & 2), let 1) = 2)
-2x² + 8x = (x/2.23) + (10.34/2.23) 
-2x² + 8x - (x/2.23) - (10.34/2.23) =0 ; solve this quadratic for x values:
x' (that is A) = 0.772 & x" (that is B) = 3. (these are the values of x-intercept (parabola with line). To calculate the y-values, plug x' & x' in the equation:
for x' = 0.772, y = 0.34 → B(0.772 , 0.34)
for x" = 3, y = 0.016     → A(3 , 0.O16)
So B IS AT 0.34 Unit from the ground
        
             
        
        
        
Answer:
70.7
Step-by-step explanation:
a2 +b2 = c2 
50^2 + 50^2 = c2 
c2 = 2500+2500 
c =  = 70.7
 = 70.7
I hope im right! 
 
        
             
        
        
        
Answer:

Step-by-step explanation:
Given



Required
Represent this as an inequality
When Dana cooks;



At Restaurant



Add these two results:

<em>To represent as an inequality, the above result must be less than or equal to Dana's total savings</em>
i.e.

 
        
             
        
        
        
Number of adults = 264 
Number of children= 127
Step-by-step explanation:
Let the number of adults be......x
Let the number of children be.....y
The total number of people that used the public swimming pool is given as 391. This means
x+y=391 
The total cost per the receipt is : $752.75
This means, 2.25 x+ 1.25 y = 752.75
The two equations are;
 x+y=391  ...........(i)
 2.25 x+ 1.25 y = 752.75...........(ii)
Making the x variable equal to eliminate x
2.25x + 2.25 y = 879.75
2.25x + 1.25 y = 752.75
Apply subtraction as
1.00 y = 127.00
y=127
Use the value of y in equation (i)
x+y=391
x+127=391
x=391-127=264
Number of adults = 264 
Number of children= 127
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Simultaneous equations: brainly.com/question/12318095
Keywords ; public, swiming pool, prices, daily, adults, children, receipt, admission
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