the length of time 100 customers spend conducting business at a car insurance company is 5.46 if the standard deviation of time spent conducting business is known to be 2 .475 the margin of error for a 90% confidence interval is

Solve: 3x+y=6 4x-2y=18 show all work !

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 3 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30∘c on monday, but decreased at a constant rate in the next 3 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

Rhombus adef is inscribed into a triangle abc so that they share angle a and the vertex e lies on the side bc . what is the length of the side of the rhombus if ab=c, and ac=b.