Matt and trey are remodeling their gardens. matt purchased 8 ferns and 1 rosebush for $35. trey purchased 4 ferns and 3 rosebushes for $25. determine the price of each plant.

Step-by-step explanation:

If we let f and r represent the costs of a fern and a rosebush, respectively, we can write equations that represent each of the purchases:

  8f +r = 35 . . . . Matt's purchase

  4f +3r = 25 . . . . Trey's purchase

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We can solve these equations using "elimination." We note that the coefficient of f in the second equation is half that in the first equation.

Subtracting the first equation from twice the second, we get ...

  2(4f +3r) -(8f +r) = 2(25) -(35)

  5r = 15 . . . . . simplify

  r = 3 . . . . . . . divide by 5

Substituting into the first equation, we have ...

  8f + 3 = 35

  8f = 32 . . . . . . subtract 3

  f = 4 . . . . . . . .  divide by 8

The fern costs $4; the rosebush costs $3.

a. 19,958,400

step-by-step explanation:

hope this

step-by-step explanation:

x^2 -12x + 36 + y^2 = 36

x^2 + y^2 = 12x

r^2 = 12rcos(theta)

r = 12 cos(theta)