Answer:
<u>The simplest radical form of this mathematical expression is - 3√3</u>
Step-by-step explanation:
1. Let's write in a mathematical expression the information given:
-4 the square root of 12 + the square root of 75
-4 (√12) + √75
-4 (√4 * 3) + (√25 * 3)  (12 = 4 * 3 and 75 = 25 * 3)
-4 (2 √3) + 5 √3 
-8 √3 + 5√3
- 3 √3
The result is- 3 square root of 3.
<u>The simplest radical form of this mathematical expression is - 3√3</u>
 
        
             
        
        
        
My teacher taught me a simple equation for these types of problems:
(percent of solution × amount of solution) + (percent of solution × amount of solution) = (percent of solution × total amount of solution)  
in simple terms:    %amount + %amount = %total amount
We know don't know how much gallons of 60% solution we need so it will be represented as x. We dont know the total amount either so it would have to be both solutions added together so 50 + x. Now lets solve:
(0.60)(x) + (0.24)(50) = (0.50)(50 + x)            simplify/ distribute
0.6x + 12 = 25 +0.5x                  get all xs on one side and numbers on other
0.1x + 12 = 25
0.1x = 13    divide both sides by 0.1 to find x
x = 130
You need 130 gallons of 60% solution.
        
                    
             
        
        
        
Answer:
Y int at 
(
0
,
3
2
)
 
X int at 
(
3
,
0
)
Step-by-step explanation:
The line is easier to visualize when the equation is in slope-intercept form:
4
x
+
8
y
=
12
 
Divide each side by 4:
x
+
2
y
=
3
 
2
y
=
−
x
+
3
 
y
=
−
1
2
x
+
3
2
 
Y-intercept (plug in 0 for x):
y
=
−
1
2
(
0
)
+
3
2
 
y
=
3
2
 
X-intercept (plug in 0 for y):
0
=
−
1
2
x
+
3
2
 
−
3
2
=
−
1
2
x
 
x
=
3
 
        
                    
             
        
        
        
It depends on how fast it was thrown/kicked but the average is around 9/10