Gọi lần lượt là giá trị lớn nhất, giá trị nhỏ nhất của hàm số trên đoạn . Tổng bằng

Explain how you can use the associative property to evaluate (7x50)x4.

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?

Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (-1+i)+(21+5i)+0