Multiply each term by 8 ( to get rid of the fractions)
we get:-
-72 = -16 - k
k = -16 + 72 = 56 answer
Answer:
v=48
Step-by-step explanation:
![v=?\\\\u=12\\\\a=9\\\\t=4\\\\v=u+at\\\\v=(12)+(9)(4)\\\\v=12+36\\\\v=48](https://tex.z-dn.net/?f=v%3D%3F%5C%5C%5C%5Cu%3D12%5C%5C%5C%5Ca%3D9%5C%5C%5C%5Ct%3D4%5C%5C%5C%5Cv%3Du%2Bat%5C%5C%5C%5Cv%3D%2812%29%2B%289%29%284%29%5C%5C%5C%5Cv%3D12%2B36%5C%5C%5C%5Cv%3D48)
146,304
You can get this by multiplying the amount of marbles in 1 box by how many boxes there are
Answer:
![2x^2+4x+2](https://tex.z-dn.net/?f=2x%5E2%2B4x%2B2)
Step-by-step explanation:
![(f \circ g)(x)=f(g(x)) \\ \\ =f(x+1) \\ \\ =2(x+1)^2 \\ \\ =2(x^2+2x+1) \\ \\ =2x^2+4x+2](https://tex.z-dn.net/?f=%28f%20%5Ccirc%20g%29%28x%29%3Df%28g%28x%29%29%20%5C%5C%20%5C%5C%20%3Df%28x%2B1%29%20%5C%5C%20%5C%5C%20%3D2%28x%2B1%29%5E2%20%5C%5C%20%5C%5C%20%3D2%28x%5E2%2B2x%2B1%29%20%5C%5C%20%5C%5C%20%3D2x%5E2%2B4x%2B2)
f-¹(x)=![\frac{2-7x}{x+2}](https://tex.z-dn.net/?f=%5Cfrac%7B2-7x%7D%7Bx%2B2%7D)
Answer:
Solution given:
f(x)=![\frac{-2x+2}{x+7}](https://tex.z-dn.net/?f=%5Cfrac%7B-2x%2B2%7D%7Bx%2B7%7D)
Let f(x)=y
y=![\frac{-2x+2}{x+7}](https://tex.z-dn.net/?f=%5Cfrac%7B-2x%2B2%7D%7Bx%2B7%7D)
Interchanging role of x and y
x=![\frac{-2y+2}{y+7}](https://tex.z-dn.net/?f=%5Cfrac%7B-2y%2B2%7D%7By%2B7%7D)
doing crisscrossed multiplication
x(y+7)=-2y+2
now solve it:
xy+7x=-2y+2
keep like terms in one side
xy+2y=2-7x
take common
y(x+2)=2-7x
make a value of y
y=![\frac{2-7x}{x+2}](https://tex.z-dn.net/?f=%5Cfrac%7B2-7x%7D%7Bx%2B2%7D)
So,
f-¹(x)=![\frac{2-7x}{x+2}](https://tex.z-dn.net/?f=%5Cfrac%7B2-7x%7D%7Bx%2B2%7D)