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Compound interest |
2013-05-10 |
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Kyla pose la question :
I am doing correspondents and cannot figure out how to explain the solution to this question, I do not understand how they came to this answer and need it explained step by step so I can complete the following questions in this unit, please help!!!
Calculating compound Interest
Johnny invest $800 that pays 8% compounded quarterly for 5 years. How much is the investment worth at the end of the 5th year?
Penny Nom lui répond. |
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Water use in a rectangular flush tank |
2013-05-10 |
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milo pose la question :
A rectangular flush tank 22" by 71/4 contains water to depth of 17" how many gallons of water will be saved if a conservation device reduces the capacity to 3/5 of this amount? And reduced to the nearest tenth
Penny Nom lui répond. |
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20 golfers over 5 days |
2013-05-09 |
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Russ pose la question :
we have 20 golfers over 5 days, with 4 people per foursome which makes 5 groups each day. I would like to each person to play with everyone at least once if possible. Do you have a formula for this?
Victoria West lui répond. |
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siin (A) and sin (A/2) |
2013-05-09 |
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shanaia pose la question :
given that sin A=4/5 and A is obtuse.find sin (A/2)
Penny Nom lui répond. |
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A triangle and an incircle |
2013-05-09 |
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Max pose la question :
On my Geometry Test about tangent, chord, and secant lengths, my teacher gave an extremely difficult problem.
It was a Circle inscribed in a Triangle with all triangle sides being tangents and lengths were given. My class was told to find the length of each segment of the line.
The points on each line were the vertexes of the triangle, and the point where the line hits the circle.
Please explain how someone could do this.
Chris Fisher lui répond. |
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The surface of a solid |
2013-05-07 |
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mustafa pose la question :
I am doing a research paper on solid surface applications . Part of the project is to find four at least in our world today and explain what there purpose is. I really need help in this area because I've been searching the internet for where solid surface are used in our world today and I really can't find anything.. Thanking you in advance, mustafa
Penny Nom lui répond. |
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Drawing a pentagon |
2013-05-06 |
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jacob pose la question :
hello. i am trying to draw a template for a project. but i don't have a
protractor. i'm trying to draw a normal pentagon with 2cm sides. what
i'm trying to figure out is the distance in centimeters from point a, to c,
in a straight line. this is needed so that i can measure and create the
shape without a protractor, and keep the angles and sides correct.
if you can help me with the measurement, or help me another way,
any help would be greatly appreciated. thank you.
Penny Nom lui répond. |
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Profit margin |
2013-05-06 |
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Arron pose la question :
I have the retail price of $45.50. This price reflects a gross profit margin of 47%. How do I calculate the original cost of the item?
Penny Nom lui répond. |
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A silver figurine |
2013-05-03 |
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Renee pose la question :
I have a silver figurine, the density of silver is 10.5g/cm3. if the figurine weighed 149 g. to determine the volume, he dropped it into a cylindrical glas of water. the diameter of the glass is 6 cm and the figurine was pure silver, by how much should the water level in the glass rise?
Penny Nom lui répond. |
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A word problem |
2013-05-03 |
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Shaneaya pose la question :
Keikio spent the day bird watching and counted 34 more birds in the morning than in the afternoon. If she counted a total of 76 birds, how many birds did she count in the afternoon?
Penny Nom lui répond. |
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How can we draw the equation "x+y=1" in 3d? |
2013-05-03 |
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shimaa pose la question :
how can we draw the equation "x+y=1" in 3d
Robert Dawson lui répond. |
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Points of intersection |
2013-05-02 |
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Bianca pose la question :
Find the sets of values of k for which the line y=kx-4 intersects the curve y=x^2-2x at two distinct points.
Penny Nom lui répond. |
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Find the height of the tower |
2013-04-28 |
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nombulelo pose la question :
the shadow of a tower,when the angle of elevation of the sun is 30 degrees is found to be 40 meters longer than when it is 45 degrees. Find the height of the tower
Penny Nom lui répond. |
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The rings of a bull's eye |
2013-04-28 |
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Math pose la question :
The bull’s eye of a target is a circle 20 cm in diameter. It is surrounded by four rings, each 15 cm wide. Find the area of each ring.
Penny Nom lui répond. |
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What is the original price? |
2013-04-25 |
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Dylan pose la question :
shirts on sale for 25% off, the sale price is 12.75. What is the original price?
Penny Nom lui répond. |
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