Ray A.

A man is running over a bridge at a rate of 20 ft/sec while a boat passes under the bridge and immediately below him at a rate of 10ft/sec/ The boat's course is at right angles to the man's and is... more

the first company charges $5495 to rent trucks plus an additialfee of $200.75 for each ton of sugar. The second company charged $7500 to rent trucks plus an additional fee of $100.50for ech ton of... more

In 2010, the population of Australia was 22,300,000 million. By 2017, the population had increased by %.  The land area of Australia is  mi^2. What was the population density of Australia in 2017?... more

The value, V, in dollars, of a shopkeeper's inventory software program is given by V=-50t+200, where t is the number of years since the shopkeeper first bought theprogram.a) Solve for t in terms of... more

Can someone give me an example and work? I am not 100 percent sure how to make my own so I need some help.

Mark and Ming are selling pies for a school fundraiser. Customers can buy apple pies and pumpkin pies. Mark sold 5 apple pies and 12 pumpkin pies for a total of $205. Ming sold 2 apple pies and 1... more

James and Trevon each improved their yards by planting hostas and shrubs. They bought their supplies from the same store. James spent $29 on 12 hostas and 1 shrub. Trevon spent $39 on 2 hostas and... more

Find the volume of the solid obtained by rotating the region bounded by y=x^2 , y=0, and x=5, about the y-axis.

Julie has $8,000 to invest, and hopes to earn $330 in interest in the first year. She wants her investment in treasury bills to be $3000 less than her investment into corporate bonds. The expected... more

The expression '(1/2)mv^2 gives the kinectic energy in joules of an object with a mass of m kg traveling at a speed of v meters per second. What is the kinetic energy of an aircraft with a mass of... more

Just need help with this question

 Simplify the following expression with rational exponents, putting the answer in simplest form: ((-3)^(1/5)) * ((-3)^(1/10))  (-3)^(3/10) (-3)^(1/50) 3^(2/15) -3 (-3)^(1/15) Simplify the following... more