A random sample of 125 adult females was selected as part of a study on weight loss. The average weight at the beginning of the study was 212 pounds with a standard deviation of 18. Use the data to construct a 95% confidence interval for the average weight at the beginning fo the study. You MUST show your work to receive full credit. Give an interpretation of the confidence interval.

Write the fraction 9/50 as a decimal if needed round to the nearest hundredth

Agroup of students want to create a garden. they do not know the exact measurements but they propose using a variable to represent the length and width of the garden. the length of the garden is 10 feet longer than double the width. use a single variable to write algebraic expressions for both the length and width of the garden. write an algebraic expression for the area of the garden. use mathematical terms to describe this expression.

What is the expression in factored form? -20x^2 - 12x a. 4x(5x+3) b. -4x(5x-3) c. -4(5x+3) d. -4x(5x+3)