Answer:
134+144
Step-by-step explanation:
just take the answer (278)- the number they give you
278-
134
144
Well first lets do the distributive property so the left side is already done 28, now the right side -4 (2x+7) when you do that you get -8x-28. So now we have 28=-8x-28. So now I would move the -28 to the left side and when you move stuff to the other side you change the sign so the sign will be positive 28+28 which is 56. Now you have 56=-8x. Now divide both side by -8 to have -7=x
Your Answer: x = -7
They will each be 9.75 cm long
Hope this helps!
Answer: cot (3x) , x=2 pi over 3
Step-by-step explanation:
