<span>15 - 1/6n = 1/6n - 1
rewrite
1/6n - 1 = 15 - 1/6n
add 1/6 n to both sides
1/6n - 1 + 1/6n = 15 </span>- 1/6n + 1/6n
Simplify
2/6n - 1 = 15
1/3n - 1 = 15
add 1 to both sides
1/3n - 1 + 1 = 15 +1
1/3n = 16
Multiply 3 to both sides
1/3n * 3 = 16 *3
3/3n = 48
n = 48
If you get confused by logarithms, here's an easier way to think about this problem: What power of 2 equals 128? Well, we know 2^3 = 8, then 2^4 must equal 16. Doubling every times, we get 2^5 = 32, 2^6 = 64 and 2^7 = 128. So, the value of log₂128 is 7.
Answer:
$0.24
Step-by-step explanation:
the working out would look something like this:
ounces dollars
12 : 2.88
duvide both by 12 to find 1 ounce
1 : 0.24
the price per ounce would be $0.24
hopefully this helps :)
Answer:
f(x) = x^2 ( x -4i) (x+4i)
Step-by-step explanation:
f(x) = x^4 + 16x^2
Factor out x^2
f(x) = x^2 ( x^2 +16)
f(x) = x^2 ( x^2 - -16)
The square root of -16 is 4i and -4i
Using the difference of square (a^2 - b^2) = (a-b)(a+b)
f(x) = x^2 ( x -4i) (x+4i)