Is 0.90090009 an irrational number

A boat leaves New Orleans and travels up stream on the Mississippi River for 4 hours the return trip takes only 2.8 hours because the boat travels 3 miles per hour faster downstream due to the current. How far does the boat travel up stream?

Consider the given function and the given interval. f (x) = 6 sin (x) - 3 sin (2x), [0, π] (a) Find the average value fave of f on the given interval. (b) Find c such that fave = f (c). (Round your answers to three decimal places.)

Joe's Painting charges $100 plus $20 per hour to paint the exterior of your home. Steve's Painting charges $120 plus $15 per hour to paint the exterior of your home.

Don is paid $4.75 on each class ring sold. How much will he earn if he sells 90 class rings?

Fiona wants to estimate the product (8.7) (3.0). Which expression shows each factor rounded to the nearest whole number? A. (9) (4) B. (9) (3) C. (8) (3) D. (8) (4)

How long does it take to get 100 dollars when working a 13 dollar an hour job

A person runs 1/2 miles in 1/14 hour. What is the persons speed miles per hour.

150 is what percent of 25?

The table shows the percentage of students in each of three grade levels, and the percentage who list basketball as their favorite sport.

What is a doubling and halving strategy?