kenuelchavislo kenuelchavislo
  • 01-08-2018
  • Mathematics
contestada

Can someone please give the right answers to those

Can someone please give the right answers to those class=

Respuesta :

DeanR
DeanR DeanR
  • 01-08-2018

Q23

Third pair (2.0, 6.8), eighth pair (8.4,2.3)

Line through both:

(8.4 - 2.0)(y - 6.8) = (2.3 - 6.8) (x - 2.0)

6.4(y - 6.8) = -4.5 (x - 2.0)

y = - (4.5/6.4) x + 9.0/6.4 + 6.8

y = - 0.703125 x
+ 8.20625

At x=9.8 that's y = - 0.703125 (9.8)
+ 8.20625 = 1.315625

Answer: Choice a

Q24.

They make $40 on leather, x, and $25 on canvas, y, so

f(x,y) = 40x + 25y

Answer: Choice a

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