Answer:
10x + 20
Step-by-step explanation:
5x + 10 +5(x) + 5(2)
= 5x+10 +5x +10
= 10x +20
Answer:
8^10
Step-by-step explanation:
Keep it as in power form. Note that the base is the same (8).
When the case is that the base is the same:
If multiplying, add the powers together.
If dividing, subtract the powers.
8^6 * 8^4 = 8^(6 + 4) = 8^10
8^10 is your answer.
~
Answer:
Tina won 5 games more than maryann, and the sum of their games is 29.. 29-5/2= 12
Maryann won 12 games while Tina won 12+5= 17 games.
Answer:
Error Bound = 0.04
Step-by-step explanation:
Whenever we want to estimate parameter from a subset (or sample) of the population, we need to considerate that your estimation won't be a 100% precise, in other words, the process will have a random component that prevents us from always making the exact decision.
With that in mind, the objective of a confidence interval is to give us a better insight of where we expect to find the "true" value of the parameter with a certain degree of certainty.
The estivamative of the true difference between proportions was -0.19 and the confidence interval was [-0.23 ; -0.15].
The question also defines the error bound, as the right endpoint of the confidence interval minus the sample mean difference, so it's pretty straight foward:
Error Bound = 
The interpretation of this would be that we expect that the estimative for the difference of proportions would deviate from the "true" difference about
or 4%.