anonymous
  • anonymous
6. If ACB is a right angle, m<1 = 4y, and m<2 = 2y + 18, find m<2. (1 point) 12º 48º 36º 42º
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
lgbasallote
  • lgbasallote
here's a hint.. \[\angle ACB = m\angle 1 + m\angle 2 = 90\] does that help? or do you need more help?
anonymous
  • anonymous
More please, if you don't mind.

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lgbasallote
  • lgbasallote
what is the value of m<1 according to the problem?
anonymous
  • anonymous
4y?
lgbasallote
  • lgbasallote
right. and m<2 is?
anonymous
  • anonymous
2y+18
lgbasallote
  • lgbasallote
right. and i said m<1 + m<2 = 90 so 4y + 2y + 18 = 90 solve for y and tell me what you get
anonymous
  • anonymous
y=12?
anonymous
  • anonymous
So 12 is the answer?
lgbasallote
  • lgbasallote
nope. that's just y
lgbasallote
  • lgbasallote
m<2 = 2y + 18 so to solve m<2 you have to substitute y into 2y + 18 make sense?
anonymous
  • anonymous
Okay so it would be 4(12) +2(12)+18...?
lgbasallote
  • lgbasallote
no...substitute y into 2y + 18 only
anonymous
  • anonymous
so 2(12)+18
lgbasallote
  • lgbasallote
right
anonymous
  • anonymous
which equals 42?
lgbasallote
  • lgbasallote
right
anonymous
  • anonymous
so 42 is my answer?
lgbasallote
  • lgbasallote
yes
anonymous
  • anonymous
Thank you!! :)
lgbasallote
  • lgbasallote
welcome
anonymous
  • anonymous
Oh I have one more question, that goes to the same photo above. 4. What is another name for <1? C DCA ACB CDA I choose CDA as my answer but I'm not sure if that's right.
anonymous
  • anonymous
or it might be DCA, I'm not sure.
lgbasallote
  • lgbasallote
|dw:1348283028935:dw| that's how m<1 looks right?
anonymous
  • anonymous
Yes
lgbasallote
  • lgbasallote
can you identify the letter of the middle of that angle?
anonymous
  • anonymous
C?
lgbasallote
  • lgbasallote
right. C is the middle. and what are the endpoints?
anonymous
  • anonymous
A and D
anonymous
  • anonymous
So C would be inthe middle, right? so it would be DCA?
lgbasallote
  • lgbasallote
right
anonymous
  • anonymous
Thanks!

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