# lupita

Most popular questions and responses by lupita
1. ## Phyiscs

A wooden box with a mass of 10.0kg rests on a ramp that is inclined at angle of 25 degrees to the horizontal. A rope attached to the box runs parallel to the ramp and then passes over a frictionless pulley. A bucket with a mass of m hangs from the end of

2. ## statistics

The number of cars sold annually by used car salespeople is normally distributed with a standard deviation of 18. A random sample of 310 salespeople was taken and the mean number of cars sold annually was found to be 71. Find the 94% confidence interval

3. ## algebra 2

a grocer sold a total of 126 apples, oranges, and melons one day. she sold 16 fewer oranges than three times as many apples as melons. write a system of three equations that represents how many apples, oranges, and melons the grocer sold

4. ## physics

A 301 kilogram piano is being lifted at a steady speed from ground level straight upward to an apartment 10.0 meters above the ground. The crane that is doing the lifting produces a steady power of 415 watts. How long does it take to lift the piano? I

5. ## statistics

The data below are the ages of a random sample of 8 men in a bar. It is known that the population of ages are normally distributed with a standard deviation of 11. Determine the 93% confidence interval estimate of the population mean. 50 70 22 36 59 39 27

6. ## chemistry

Show me how to calculate the mass of 20.0 moles of He?

7. ## geometry

A triangle has an angle that is 83 degrees and another angle that is 40 degrees. Using this information, what is the degree of the third angle of the triangle?

8. ## algebra!!!!

HELP ME I DON'T GET IT What do you need help with?

1. ## math

16

posted on September 17, 2018
2. ## Physics

A 1400 kg car accelerates from rest to 95 km/hr in 7.4 sec. Whatb is the average power delivered by the engine?

posted on January 29, 2018
3. ## Health

THE START OF PUBERTY VARIES GREATLY AND CAN BEIGN AS ---YEARS OLD AND AS LATE AS ---YEARS OLD? I CHOOSE C BUT WAS NOT SURE CAN AND MAY YOU HELP?

posted on September 11, 2015
4. ## finance

Orbital Communications has operating plants in over 100 countries. It also keeps funds for transactions purposes in many foreign countries. Assume in 2010 it held 150,000 Kronas in Norway worth \$40,000. The funds drew 13 percent interest, and the krona

posted on August 10, 2015
5. ## Algebra

Okay so the answer is 4.5 hours but not sure how is 4.5 hours.. can someone help me.! thanks

posted on May 26, 2012
6. ## Spanish

you are correct on the rest.. but the first is not D

posted on May 25, 2012
7. ## algebra 2

Solve by elimination Method -x-5y+z=17 -5x-5y+5z=5 2x+5y-3z=-10

posted on December 20, 2010

bananas andtropics both have the same ending. what are their base words? how

posted on September 20, 2010