(solve for x) x/6 -2 = 13

Step-by-step explanation:

⟼ x/6 - 2 = 13

step 1 : Simplify both sides of the equation.

⟼ x/6 - 2 = 13

⟼ 1/6 x + - 2 = 13

⟼ 1/6 x - 2 = 13

step 2 : add 2 both sides

⟼ 1/6 x - 2 + 2 = 13 + 2

⟼ 1/6 x = 15

step 3 : Multiply both sides by 6.

⟼ 6 × (1/6 x) = (6) × (15)

⟼ 6/6 x = 90

⟼ x = 6/6 × 90

⟼ x = 90.

∴ x = 90.

lets take x = 90.

⟼ (90) / 6 - 2 = 13

⟼ 90/6 - 2 = 13

⟼ 15 - 2 = 13

⟼ 13 = 13.

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

step-by-step explanation:

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify