The answer to this question would be : 2pi/3
Answer:
A is correct.
Step-by-step explanation:
Using the given equations to solve:
2x + 7y = 4
-4x - 3y = 14
Expressing one equation in terms of x:
2x + 7y = 4
2x = 4 - 7y
x = (4 - 7y)/2
Substituting to the other equation:
-4 [(4 - 7y<span>)/2</span>] - 3y = 14
-8 + 14y - 3y = 14
11y = 22
y = 2
Substituting back to the first equation:
2x + 7(2) = 4
2x + 14 = 4
2x = -10
x = -5
Therefore, (x,y) = (-5 , 2)
Find the common denominator for 8 and 6. That's 48
So 3/8= 18/48
And 5/6=40/48
Minus 40 from 18 to find out how many more cups of water he used.
That's 22 cups of water.
I hope this helps you
x= -1
g (-1)= -1+3=2
f (g (-1))=f (2)=?
x=2
f (2)=3.2^2+1
f (2)=3.4+1
f (2)=12+1
f (2)=13