Which shows the correct substitution of the values a, b, and c from the equation-

2

+X4 into the quadratic formula?

Quadratic formula: x = -by- Aac

29

x = -(-1) *V(1)2 - 4(1) – 4)

2(1)

-1 V12-4-1)(-4)

2(-1)

x= -1*V(1)2 - 4 - 1)(-2)

21-1)

x==(-1):71-232 - 4(13–3)

2(1)

15: 24

62.5%

step-by-step explanation:

delaney would like to make a 5lb nut mixture that is 60% peanuts and 40% almonds.

she has several pounds of peanuts and several pounds of a mixture that is 20% peanuts and 80% almonds.

let 'p' represent the number of pounds of peanuts needed to make the new mixture, and  

let 'm' represent the number of pounds of the 80% almond-20% peanut mixture.

:

p + m = 5

therefore

m = (5-p)

write an equation based on the percent of peanuts

1p + .2m = .6(5)

replace m with (5-p)

p + .2(5-p) = .6(5)

p + 1 - .2p = 3

p - .2p = 3 - 1

.8p = 2

p = 2/.8

p = 2.5 lbs of peanuts required

then

5 - 2.5 = 2.5 lbs of the peanut/almond mixture required

:

a) what is the system that models this situation?

p + m = 5

1p + .2m = .6(5)

put greater than symbol. (> ). can i get brainliest?