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The sequence 2,3,5,5,8,7,11 |
2011-01-19 |
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From taylor:
number relationship in number sequence 2,3,5,5,8,7,11
Answered by Chris Fisher and Penny Nom. |
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1/a^2 + 1/b^2 |
2011-01-19 |
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From robert:
If (a + b)^2 = 81 and ab = 18, find the value of 1/a^2 + 1/b^2 ?
Answered by Penny Nom. |
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Points with distance 5 from the point (-2, -1) |
2011-01-19 |
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From Alexa:
Find all points having a x-coordinate of 2 whose distance from the point (-2, -1) is 5.
Answered by Penny Nom. |
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The diameter of a cylinder |
2011-01-18 |
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From Gayle:
Given a cylindrical container that holds 45 imp. gallons and is 42 inches high, find the diameter
Answered by Penny Nom. |
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Flipping a cone over |
2011-01-17 |
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From Fionna:
The height of your cone is "x".
Holding the cone so that the vertex is at the bottom, fill it half full with water. The depth of the water is "1/2x".
Put a lid over the top, and flip it over.
What is the new depth of the water, now that the cone is flipped?
Answered by Penny Nom. |
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Profit as a percentage |
2011-01-17 |
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From Connie:
I am trying to determine the profit margin on selected items.
ex: A bottle of juice costs me $.70, I sell it at $3.75. How can I determine what my profit percentage is?
Answered by Penny Nom. |
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A rectangle |
2011-01-16 |
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From meg:
if a rectangle has a length that is 3cm less than 4 times its width and its perimeter is 19cm, what are the dimension?
Answered by Penny Nom. |
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The greatest value of 5 – | x – 3| |
2011-01-16 |
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From pranav:
What is the greatest value of 5 – | x – 3 | for any integral value of x.
--< br />
PRANAVM
Answered by Penny Nom. |
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A cylindrical tank |
2011-01-16 |
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From tom:
A cylindrical tank, 1 ft in diameter, length 6 ft , is placed so that its axis
is horizontal. How many pounds of water will be used in filling it to a depth
of 9in. , if water weighs 62.4 lbs. per cu. ft.?
Answered by Penny Nom. |
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16 golfers |
2011-01-16 |
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From Kenneth:
Our group will play 12 rounds.
We are 16 golfers.
How can I schedule 12 days of differing foursomes limiting repeats in the foursomes
Answered by Victoria West. |
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tanθ=1.192 |
2011-01-15 |
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From Adori:
Use a calculator to approximate two values of the θ (0 ≤θ≤2π) that satisfy the equation.
a) tanθ=1.192
I do not understand how to find the second value of θ.
Answered by Harley Weston. |
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2x = 2+2x |
2011-01-15 |
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From james:
2x=2+2x can you help me find what x epauls?
Answered by Penny Nom. |
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Matt is thinking of two numbers |
2011-01-14 |
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From mary:
Matt is thinking of two numbers. One number is 9 more than the other number. The sum of the numbers is 45. What are the numbers?
Answered by Penny Nom. |
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Integrating ln^3x/x |
2011-01-14 |
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From ken:
y=ln^3x/x from x=1 to x=11
Answered by Penny Nom. |
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The volume of a smokestack |
2011-01-13 |
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From tom:
The outer protective smokestack of a steamship is streamlined so that it has
uniform oval section parallel to the deck. The area of this oval section is
48 sq. ft . If the length of the stack is 15 ft. and the stack is raked aft so
that its axis at its upper end is horizontally 4.2 ft from the lower end, find
the volume enclosed by the stack.
Answered by Penny Nom. |
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