Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions



This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
0 0 0
i already solve it lol.before i post.
did you try to use -5? lol cause its 24
lol use matrices..
i did lol
lol try again...
A(5,1), B(-3,1), C(1,y)
Area = \frac{1}{2} |A_x(B_y - Cy) +B_x (C_y - A_y) +C_x (A_y - B_y)| \\ \frac{1}{2} |5(1-y) -3(y-1)+1(1-1)| \\ \frac{1}{2} |-8y+8| = 24. \\ |-8y+8| =48.
Thus, either -8y+8 = 48 or -8y+8 = - 48.
y = -5 or y=7.
0 0 0
ah ,, anung year mo na po?
simple lng po kc ung tanung ko.. jaja :) pwede rin gmitin ang matrices accurately po ang sagot y=7..
pa add nmn
actually, ginoogle ko lang yung formula ng area ng triangle given its coordinates. graduate na ako, gusto ko lang mag-review ng lessons nung hayskul.
yeah...pwede kuha ko email mo sa fb..
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts