Is 81x squared minus 1 a perfect square

Which expression is equivalent to 14 times 14? 2 squared 2 Superscript 14 14 squared 14 Superscript 14

You pay $2.40 for 3/4 pounds of grapes. Your friend buys a pound of grapes at the same time and estimates that he will pay $1.80. What can you say about your friends estimate?

James knows that when he walks, he takes about 120 steps per minute and that each step is 2.75 feet long. which calculation is most reasonable for james to use to find out his walking speed in miles per hour?

Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate for the data below. Years in which a recession occurred.

What is a Real number between the square root of 13 and 14?

Parker and Makayla work at a furniture store. Parker is paid $230 per week plus 1.5% of his total sales in dollars, x x, which can be represented by g (x) = 230 + 0.015 x g (x) = 230+0.015x.

You are designing a wall Mural that will be composed of squares of different sizes. One of the requirements of your design is that the side length of each square itself is a perfect square.

What's 5731 : 3 = ?

If P dollars is deposited in a savings account that pays interest at a rate of r % per year compounded continuously, find the balance after t years. (Round your answer to the nearest cent.) P = 100, r = 2 1/2, t = 12

Germ theory describes true relationships between microorganisms and how people get sick. What is a difference between germ theory and scientific laws?