Write the quadratic equation whose roots are -4 and -1 and whose leading coefficient is 2

Below

Step-by-step explanation:

here is the factored form of a quadratic equation :

     f(x) = a ( x +/- n ) ( x +/- n )

We can just plug in what we know into this form :

     f(x) = 2 ( x + 4 )( x + 1 )

If you were to plug this into desmos it will show you the graph!

Hope this helps!

water molecules will move from the side of higher water concentration to the side of lower concentration until both solutions are isotonic. at this point, equilibrium is reached. in an isotonic solution, the flow of water in and out of the cell is happening at the same rate.

hope this < 3

$53.50

step-by-step explanation:

you have to subtract the amount of money chuck earned ($72.50) by the cost of the gas for the mower ($11.25) and the new string for the trimmer he bought ($7.75).

72.50-11.25=61.25

and then subtract $61.25 by the second thing he bought (the new string for the trimmer)

61.25-7.75=53.5

so in total it's $53.50 (53 dollars and 50 cents)