Both expression have the same denominator: 9x²-1. Thus it must not be 0.
9x²-1=(3x-1)(3x+1)=0, resulting x=+-1/3.
Restrictions: x in R\{-1/3, 1/3}
Adding those expressions:
E=(-x-2)/(9x²-1 ) + (-5x+4)/(9x²-1)=
(-x-2-5x+4)/(9x²-1)=(-6x+2)/(9x²-1)=
(-2)(3x-1)/(9x²-1)=-2/(3x+1)
E=-2/(3x+1)
Three million twenty nine and two hundred fifty one
Answer:
30.06
Step-by-step explanation:
Y = 2x
y = 2*(-15) = -30 . . . . . selection A is appropriate
Use the table of trigonometric ratios /in a picture/.
Answer: m∠A ≈ 70°
