The given quadratic equation is
comparing with
We get ,
formula :
Discriminant of given quadratic equation is 25 .
option (B) 25 ✔
Answer:
you have the answer right
Perimeter means finding the total area of the outside of the triange (so the sum of all sides).
If you need further help, let me know!
I’m guessing that this is for systems of equations?
n - nickels
d - dimes
These are the equations you start off with.
n = 5d-2
0.95 = 0.10d+0.05n
Substitute the top equation for n into the variable n in the bottom equation.
0.95 = 0.10d+0.05(5d-2)
Solve for d.
0.95 = 0.10d+0.25d-0.10
1.05 = 0.35d
3 = d
Substitute d into the top equation and solve for n.
n = 5(3)-2
n = 15-3
n = 12
There are 3 dimes and 12 nickels in the coin purse! Hope this helped <3
Answer:
90 is the orrect answer because I said so
Step-by-step explanation:
