Explanation;
2x=256
2x=2 exponent 8
x=8
4x-1=64
x-1=4³
x-1=3
x=3+1
x=4
8x-2=16
x-2=8²
x-2=2
x=2+2
x=4
3x-2=81
x-2=3⁴
x-2=4
x=4+2
x=6
3²x=9 exponent 5x-4
2x=5x-4
4=5x-2x
4=3x(<em>divide</em><em> </em><em>bo</em><em>th</em><em> </em><em>sides</em><em> </em><em>by</em><em> </em><em>3</em><em>)</em>
<em>x</em><em>=</em><em>4</em><em>/</em><em>3</em>
Answer:
1/6 x 1/6
Step-by-step explanation:
I suppose that you should have given some pairs to choose from.
Anyway, I can tell you how to do it. Given a pair , you have to substitute and to and respectively, and see if you get something true.
For example, the pair satisfies the function, because the substitution yields
which is true. On the other hand, the pair doesn't satisfy the function, because
is clearly false.
Using it's concept, it is found the standard deviation of $10 means that most students spent within $10 of the mean of $60 on the slot machines.
<h3>What is the standard deviation of a data-set?</h3>
- The standard deviation is given by the square root of the sum of the differences squared of each observation and the mean, divided by the one less than the number of values.
- It represents by around how much the distribution varies around the mean.
Hence, in this problem, the standard deviation of $10 means that most students spent within $10 of the mean of $60 on the slot machines.
More can be learned about standard deviation at brainly.com/question/24754716
A correlation coefficient of 0.9 is more likely. A correlation coefficient of 1.0 denotes that the probability of an event happening is certain (i.e. 100% likely to occur). When analysing statistical data, it is unlikely that you will come across events with absolute certain probabilities. For example, meteorologists can predict the weather to an extent where they are confident that the prediction will be correct, but they cannot be certain as the weather can be unpredictable at any time.