A soccer ball manufacturer wants to estimate the mean circumference of mini-soccer balls within 0.12 inch. Assume that the population of circumferences is normally distributed with a population standard deviation of 0.78 inch. How many balls must the manufacturer sample in order to construct a 90% confidence interval for the population mean

triangle abc is reflected on the line x=-6.5 then reflected again on the x axis

step-by-step explanation:

i believe it is c.y = 9x

rise over run. 9 units up over 1 unit right or 9/1

answer: sine

step-by-step explanation:

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )