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WHY 144 where does this figure come from |
2008-04-19 |
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From Sean:
Why do you use the number 144 to divide
EG. length of timber 2 inches x 8 inches x 14 foot = 1.5 cubic feet
Calculation is 2x8x14 =224 divide by 144 = 1.5 WHY 144 where does this figure come from
Answered by Leeanne Boehm. |
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45 miles at 50 mph |
2008-04-18 |
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From Willie:
If you travel at 50 mph, how long does it take to go 45 miles?
Answered by Penny Nom. |
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The perimeter of a rhombus |
2008-04-18 |
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From susana:
how do you find the perimeter of a rhombus?
Answered by Penny Nom. |
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Simplify 5x^5/8 / 15x^2/12 |
2008-04-18 |
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From Kyler:
5x^5/8 / 15x^2/12 Divide the rational expressions. Simplify the results.
Answered by Penny Nom. |
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A polynomial equation |
2008-04-18 |
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From Joan:
Find all polynomials P(x) satisfying x^2P(x) + P(1-x) = 2x-x^4
Answered by Harley Weston. |
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A solid figure with 3 rectangular faces and 2 triangular faces |
2008-04-17 |
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From Emily:
I am in the 3rd grade and my teacher gave us a question. What is a
solid figure with 3 rectangular faces and 2 triangular faces?
Answered by Penny Nom. |
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Two intersecting circles |
2008-04-17 |
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From Muhammad:
Hi, how can we find the perimeter and area of the region common to two intersecting circles of radii 6 cm and 4 cm with centers 7 cm apart.
Answered by Harley Weston. |
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Integrate 2x(x^2-1)^5 dx |
2008-04-17 |
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From joey:
pls help me to integrate
2x(x^2-1)^5 dx using the substitution u=x^2-1
Answered by Harley Weston. |
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Sin^2x=1/2(1-Cos2x) |
2008-04-17 |
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From Chris:
Could someone please show a step by step guide on how to answer this question
Sin^2x=1/2(1-Cos2x) and then explain where this identity would be useful???
Answered by Harley Weston. |
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5sin^2x+3sinx=4 |
2008-04-17 |
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From Chris:
solve the following in the range 0 - 360 degrees?
5sin^2x+3sinx=4
Answered by Penny Nom. |
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The height of a triangle |
2008-04-17 |
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From Trent:
I need to know the area of a triangle. One side is 5 the base is 12 and the angle between them is 52 degrees. No height is specified. How do I find the height to get the area?
Answered by Penny Nom. |
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The volume of a stone |
2008-04-17 |
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From sara:
a rectangular tank 30 cm long and 20 cm wide is filled with water to a depth of 8 cm. When a stone was put in, the water level rose to 11 cm. Find the volume of the stone. (Assume that the stone is completely under water.)
Answered by Penny Nom. |
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Break this code |
2008-04-16 |
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From Kim:
The most common letter used in the English Language is E. The next is T. Vowels O,A and I are the next most common;then comes the letter N.
Use this information to break this code.
DMRA EXCEFX GC RCQ JRCL QBMQ QBX NQOGA CS DMQBXDMQTUN UMR BXFE QBXD WXMG CW LWTQX M UCGX
Answered by Claude Tardif. |
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A 30-60-90 triangle |
2008-04-16 |
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From Ron:
30-60-90 triangle. Base is 2.75 how do I find the length of the other two sides?
Answered by Penny Nom. |
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Excluded values |
2008-04-16 |
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From Jenny:
Give the excluded values for the fraction m+5/mn+3m
m=
n=
Answered by Penny Nom. |
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