Are the following polynomials?:

-x^2+5x

6x^2+5x

-7x^2+5/3x

You want to make an investment in a continuously compounding account earning 5.8% interest. how many years will it take for your investment to double in value? round the natural log value to the nearest thousandth.

Which of these is the best estimate of the mass of an apple 100 milligrams or 100 grams or 100 kilograms

Mrs. Pine took tennis lessons. She traveled 15 miles one way at an average cost of $0.45 per mile. Her racket cost $84, balls cost 15.50, shoes cost $47.00, her sweatsuit was $32, and her shorts were on sale for $22.

What is the awner to 1 9/10 3/4.?

How many liters of a 10% alcohol solution must be mixed with 90 liters of a 60% solution to get a 30% solution?

15 times x = 45 solve for x and i will be marking as brainliest for the first/correct answer

How many times greater is 10^2 than 10^1 A. one tenth B. ten C. one hundred D. one thousand

A triangle has 2 angles that each measure 69°. What kind of triangle is it?

The sum of two numbers is 11 and their product is 128. find the numbers?

Express 35.4% as a decimal