5. A pharmaceutical company claims that its antacid formula provided relief for 70% of all the people who used it. To investigate this claim, a research company randomly selects 81 people who used the company’s antacid formula. 1. In a sample of 81 people who used the company’s antacid, find the probability that the sampling distribution of sample proportion would have between 70% and 90% of people who got relief by using the company’s antacid formula. Report your answer to 2 decimal places.

1/3(x-10)=-4 solve for x with steps

/is used for a fraction 1) if x = 2/3 and y = 3/4, what is the value of (x + y) (x/y) expressed as a common fraction? 2) what is the least positive integer greater than 1 that leaves a remainder of 1 when divided by each of 2, 3, 4, 5, 6, 7, 8, and 9? 3) the ponde family's powerjet pumps 420 gallons of water per hour. at this rate, how many gallons of water will it pump in 45 minutes? 4) kim's insurance company pays 80% of the cost of all prescription medication she purchases in a year beyond the first $250 worth of prescriptions. her prescriptions for this year cost a total of $570. how many dollars of this amounts will kim's insurance company pay?

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.