Question

18= 1.57(multiply sign) X^2.2please give me steps!!!

Answer 1

Answer: x = 3.030631 approximately

Explanation:

If you want to solve for x, then you could follow these steps:

$18 = 1.57*x^{2.2}\\\\18/1.57 = x^{2.2}\\\\11.464968 \approx x^{2.2}\\\\x^{2.2} \approx 11.464968\\\\x \approx (11.464968)^{\frac{1}{2.2}}\\\\x \approx 3.030631$

In the second to last step, we have the value 11.464968 raised to the exponent of 1/(2.2) which is done to undo the exponent of 2.2 in the previous line.  The rule used is $a^b = c \to a = c^{1/b}$