Can you read and give me the equation i need? no solving required, it would be the biggest : jordan is a manager of a car dealership. he has two professional car washers, matthew and arianna, to clean the entire lot of cars. matthew can wash all the cars in 14 hours. arianna can wash all the cars in 11 hours. jordan wants to know how long it will take them to wash all the cars in the lot if they work together. write an equation for the time it will take matthew and arianna to wash all the cars together

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.

Which of the following is the shape of a cross section of the figure shown below

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?