1x - 4 = 2x
(minus the 1x from the left to cancel it out and minus it to other side making the 2x a 1x or just x)⤵️
-4 = x
and that is the answer
<span>The probability of the outcome's occurrence by "chance" is 5% or less. "Chance" results are those that are within normal variation, which is defined as 2 standard deviations from the mean. Results that are less than 2 standard deviations from the mean are considered not statistically significant, meaning that the null hypothesis should not be rejected. There are some differences the point at which the 5% case occurs, depending on whether the null hypothesis is directed or not.</span>
Answer:
C 0 solutions
Step-by-step explanation:
8x+47 = 8(x+5)
Distribute
8x+47 = 8x+40
Subtract 8x from each side
47 = 40
This is never true so there are no solutions
There are

ways of pairing up any 2 members from the pool of
contestants. Note that

so that

Answer:
31
Step-by-step explanation:
I can't explain any further......