In exact form: 13/36
in decimal form: 0.36111111...

- subtract the 12 from both sides so that it becomes the last constant term in the quadratic equation which should now equal 0.
- take the 4x
- half the coefficient of 4 (2)
- square it (4)
- add it to the equation (+4)
- subtract it from the equation (-4)
- factorise the square (x+2)^2 expands to (x^2 + 4x + 2) as {a+b}^2={a^2 + ab + ba + b^2}
- now the equation is in turning point form.
- to find x, add 16 and square root 16 and (x+2)
- subtract 2 from positive or negative 4 (as -4^2 and 4^2 both equal 16).
- This should give you two values for x, -6 and 2.
I really hope that this helped :)
Answer:
4.125 or 4 1/8 or 33/8
Step-by-step explanation:
Find the LCD and then combine.
Answer:
x=8+3
x=11
Step-by-step explanation:
You add the amount of balloons she has with the amount she lost to equal the amount she started with.