Jacob estimates the square root of 50 in the following way:

√75 (both numbers repeating) = 3√25 (25 repeating) = 3 * 5 = 15

Explain why her reasoning is incorrect.

Estimate the square root of 75 to the nearest thousandths without using your calculator. Show your work.

Note: If you use a calculator you will get the wrong answer.

In the diagram of circle a what is m

Which of the following graphs could represent a quartic function?

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?