respuesta:primero verdadero
segundo : no
Answer:
What figure?
Step-by-step explanation:
I can help, just need figure :)
You can post it and ill edit this answer
Answer: correct trigonometric ratios
SinB, tanA and cos A.
Step-by-step explanation:
The right triangle has two sides 5 and 12 , by Pythagoras it's hypotenuse is 13.
Tan B=5/12,
Sin A =12/13
2c + b = 37 ....multiply by -3
4c + 3b = 81
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-6c - 3b = - 111 (result of multiplying by -3)
4c + 3b = 81
------------------add
-2c = - 30
c = -30/-2
c = 15 <== $ 15 for a can of paint
and it costs $ 7 for each brush
