Answer:
20x + 20
Step-by-step explanation:
4 ( 2x + 3 ) + 4 ( 3x + 2 )
Take 4 common from both,
4 ( 2x + 3 + 3x + 2 )
= 4 ( 2x + 3x + 3 + 2 )
= 4 ( 5x + 5 )
= 4 ( 5x ) + 4 ( 5 )
= 20x + 20
Answer:
Im pretty sure this is the answer.
Confidence interval decreases, error decreases
Option: a
<u>Explanation:</u>
Increasing of sample size will decrease the width of the confidence intervals because it also decreases the standard error of the interval. So whenever the 'sample size' is increases then the 'confidence interval' decreases as well as the 'error' decreases.
Confidence interval gives us the unknown average population or percentage of the population. This gives us just how much the average rate is varying. Confidence interval gives the location as well as the precision of a measure. The smaller sample sizes gives more wider intervals.
Answer: Since it is not a perfect square my answer is the square root of 261 or 16.16 which is rounded to the nearest hundredth.
Step-by-step explanation:
10^2 + b^2 = 19^2
100 + b^2 = 361
-100 -100
b^2 = 261
b= 
