Please help and explain! I will mark brainliest to correct answer!​

x =20

Step-by-step explanation:

Factorize 81

81 = 9 * 9 = 3 * 3 * 3 * 3

Therefore x = 20

you need to give us more information since we can't answer

given : the shape of his satellite can be modeled by   where x and y are modeled in inches.

now,the given equation   is a equation of parabola.

here, coefficient of x is positive, hence the parabola opens rightwards.

on comparing this equation with standard equation , we get

in standard equation, coordinates of focus=(0,m)

thus for given equation coordinates of focus=(0,1.5)

step-by-step explanation: