n has a negative exponent, so you need to rewrite the expression using the negative exponent rule b^-n = 1/b^n
(m^8 1/n^4)^1/4
Now make m^8 a fraction buy giving it a denominator of 1:
(m^8 / 1 1/n^4)^1/4
Multiply the fractions together to get m^8/n^4
Now divide the exponents by 4 to get the final answer of:
m^2/n
The height of the doorway in inches is 72
Answer:
a = 6
Step-by-step explanation:
-6(2 + a) = -48
it is basically 2 steps
Divide by -6 first
(2 + a) = -48 / -6
2 + a = 8
minus the 2
a =6
0.36 as a fraction would be 9/25
Mistake #1: 1/2x was added; it should have been subtracted to get 5.5x
Mistake #2: 5/4 + 5 (20/4) is 25/4, which is 6.25 and not 3.75.
You should get 5.5x = 6.25, and x = 1.36. (not 15/26)