160 = 2 x 2 x 2 x 2 x 2 x 5 = 2^5 x 5
243 = 3 x 3 x 3 x 3 x 3 = 3^5
So
(160 * 243)^1/5
= 5th root of (160 * 243)
= 5th root of (2^5 * 5 * 3^5)
= 2 * 3 * (5th root of 5)
= 6 * (5th root of 5)
Answer is D. 6 * (5th root of 5)
2x -20 -1 =0
2x -21=0
2x=21
x= 10.5
Answer:
Step-by-step explanation:
Hope this helps :)
I is C because you use the pythag theorem
Step-by-step explanation:
I have used substitution method here to find the value of x and y.