In a random sample of 6 mobile devices, the mean repair cost was $60 and the standard deviation was $11.50. Assume the population is normally distributed and use a t-distribution to find the margin of error and construct a 99% confidence interval for the population mean. Interpret the results.

Monica build a remote control toy airplane for science project to test the plane she launched it from the top of a building the plane travel a horizontal distance of 50 feet before landing on the ground a quadratic function which models the height of the plane in feet relative to the ground at a horizontal distance of x feet from the building is shown

If the value of cos330°is√3/2 then find cos 165°.

Using only odd number for numerators write two different subtraction problems that have a difference of 3/4