Wednesday

July 23, 2014

July 23, 2014

Total # Posts: 14

**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 the rope. The coeffici...

**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 dont understand how to be...

**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?

**Algebra**

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

**Spanish**

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

**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 47

**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 estimate of the populat...

**chemistry**

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

**algebra 2**

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

**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

**6th grade vocabulary**

bananas and tropics both have the same ending.what are their base-words?How does -s change the meaning of their words?

**6th grade vocabulary**

WHAT IS THE DIFFERENCE BETWEEN S AT THE ENDOF THE TOPICS AND S AT THE END OF NEEDS

**6th grade vocabulary**

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

**algebra!!!!**

HELP ME I DONT GET IT What do you need help with?

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