Answer:
B IS THE ANSWER
Step-by-step explanation:
Answer:
x = 5/4
Step-by-step explanation:
32^(x-1) = 16^(x/4)
(2^5)^(x-1) = (2^4)^(x/4) . . . . . express as powers of 2
2^(5x -5) = 2^x . . . . . . simplify
5x -5 = x . . . . . . equate exponents
4x = 5 . . . . . . . . add 5-x
x = 5/4
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Applicable rules of exponents are ...
(a^b)^c = a^(bc)
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Since this solution does not match any offered answer choice, we suggest you ask your teacher to show you how to work this problem.
Answer:
4(5+k)
Step-by-step explanation:
20+4k
20 = 2*10 = 2* 2*5
4k = 2*2*k
The common factors are 2*2 = 4
We can factor out a 4
What is left over is inside the parentheses
4(5+k)
Answer:
15% discount
Step-by-step explanation:
1 - (102/120)
1 - 0.85 = 0.15 = 15%