A survey of small businesses with websites found that the average amount spent on a site was $12,000 per year with a standard deviation of $4,000. Given a sample of 40 businesses, what is the margin of error if you are to assume a 95% confidence level

Піf x = y and y= z, which statement must be true? оа. -x = -2 b. x= z ос. —x = 2 od. 2= x

Equation for the calculation double 2 and then add 5

1. 2. ∠b and ∠y are right angles. 3.? 4.? which two statements are missing in steps 3 and 4? ∠x ≅ ∠c △abc ~ △zyx by the sas similarity theorem. ∠b ≅ ∠y △abc ~ △zyx by the sas similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem.