A recent survey suggests that 85% of adults know what Twitter is. How many adults should you survey in order to be 90% confident that your estimate is within 5% of the true population proportion?

Find f^-1 (x) for f (x) = 1/x^3 and state whether or not it is a function? (TIMED) A. f^-1 (x) = - 1/3x + 2/3 : function B. f^-1 (x) = 1/3x - 2/3 : not a function C. f^-1 (x) = 1/3x + 2/3 : function D. f^-1 (x) = - 1/3x - 2/3 : function

Mr. Gardener invested $500,000. His annual interest was $40,000. What was the annual interest rate?

James lives 3.42 kilometers from school. Megan lives 0.76 kilometer from school. The distance James lives from school is how many times as long as the distance Megan lives from school? Show your work.

The base diameter and the height of a cone are both equal to x units. A cone has a height of x and a diameter of x. Which expression represents the volume of the cone, in cubic units?

A company manufactures shaving sets for $5 each and sells them for $7 each. How many shaving sets must be sold for the company to recover an initial investment of $45,000 and earn an additional $15,000 as profit.

The length of a rectangle is six times it's width if the area of the rectangle is 600m2 find its perimeter

Which type of structure is used to determine which of two sets of instructions to execute?

If the mean of the data set shown below is 11, find x. x, 12, 8, 15

Blueberries cost less than cantaloupe said the company charge more or less for the new Salad explain your reasoning

The Sum of 9/26 and - 4/13 is A. - 1 B. 5/13 C. 1/26 D.-17/26