The graph of a quadratic function is shown below. An equation that represents the function could be A - q(x) = -0.5(x - 15)² + 25
B - q(x) = 0.5(x - 15)² + 25
C - q(x) = -0.5(x + 15)² - 25
D - q(x) = 0.5(x + 15)²-25

it is contrapositive

i could not see the question too well so check yourself again too . this is because i want you to get it correct.

it is not that hard all u have to do is plot the graph

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)

5 + 8 +7 + 4 + 0 +1 = 25

step-by-step explanation: