Mathematics.

A farmer feeds every two cows on 480kg for hay for four days. The farmer has 20160kg of hay which is just enough to feed his cows for 6weeks. find the number of cows in the farm

The mean of a normal probability distribution is 500; the standard deviation is 10. a. about 68 percent of the observations lie between what two values?

Factorize the following algebra expression: 27x^3+8y^6

If 675 is 3/4 what is the the other 1/4 and how did you get it?

In a recent year 17.3% of all registered doctors were female. If there were 52,900 female registered doctors that year, what was the total number of registered doctors? Round to the nearest whole number

What is 1/3*4 I need it for homework I am working on Fraction Multiplication

A hot air balloon rises at a rate of 38 km/h and starts at the height of 60 km. Another balloon started from the ground and is rising at the rate of 50 km/h. At this rate what height will they be at when they are at the same height?

Factor sec^2x-secx+tan^2x

john is packing a box that is shaped like a cube and has an edge that is 25 centimeters long how much space is available in the box

A student has a container with a volume of 1.5 liters. She estimates the volume to be 2.1 liters. By what percent is the student's estimate off? (Round to the nearest percent as needed.)

Multiply the polynomials. (8x2 + 6x + 8) (6x - 5)