Simplify (3x^2y^-4)^2

1/6x^4y^8
1/9x^4y^8
y^8/9x^4
-6y^8/x^4

The vertex of this parabola is at (-2,-3). when the x-value is -1, the y-value is -5. what is the coefficient of the squared expression in the parabola's equation?

The total number of dental clinics total for the last 12 months was recorded

How many heads would you expect if you flipped a coin twice? first, fill in the table below with the correct probabilities. hint: the sample space for flipping a coin twice is {hh, ht, th, tt}. a = b = c =