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(2b^-1c^3)^3 (b^4c^-2)^0 |
2008-06-05 |
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ashley pose la question :
Simplify this expression
(2b^-1c^3)^3 (b^4c^-2)^0
Please help me. I not sure about the zero on the outside of parentheses.
Penny Nom lui répond. |
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A recursive formula for 9, -18, 36, -27, ... |
2008-06-05 |
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Rita pose la question :
I am having trouble understanding how to write formulas (I should say create formulas) from a given sequence.
It does not matter what sort of sequence it is. The confusion remains.
I have not found a textbook or easy math book that explains this process for the average Joe to grasp.
Here are the two questions:
(1) Write a recursive formula for the sequence
9, -18, 36, -72, ...
(2) Write a recursive formula for the sequence
3, 3(sqrt{3}), 9, 9(sqrt{3})
Penny Nom lui répond. |
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The two acute angles in a right triangle |
2008-06-05 |
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Crystal pose la question :
In the right triangle the ratio of the measure of the two acute angles is 4:1. What is the measure in degrees of the larger acute angle?
Penny Nom lui répond. |
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How do you add decimals? |
2008-06-05 |
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nyheashiacurry pose la question :
how do you add up decimals?
Janice Cotcher lui répond. |
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The path of a baseball |
2008-06-04 |
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Tom pose la question :
How high would a batter have to hit a ball to clear the stadium roof in right field
if the distance to the right field fence is 320 feet from home plate? Is this solvable?
Janice Cotcher lui répond. |
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The interior angles of an 18-sided polygon |
2008-06-04 |
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Alfred pose la question :
How do I find the sum of the interior angles of an 18-sided polygon?
Janice Cotcher lui répond. |
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The volume of a solid |
2008-06-04 |
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Tom pose la question :
The base of a certain solid is a circle of radius 2 while cross sections perpendicular to the
base are isosceles triangles of height 1. What is the volume of the solid?
Harley Weston lui répond. |
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Three mutually tangent circles |
2008-06-04 |
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Jacob pose la question :
If three circles are mutually tangent, does that mean that the two tangent lines are perpendicular?
Chris Fisher lui répond. |
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The area of an octagon |
2008-06-03 |
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Jeanne pose la question :
WHAT IS THE SQUARE FOOTAGE OF A 14 X 14 OCTAGON?
Penny Nom lui répond. |
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Calculating a price based on markup |
2008-06-03 |
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Sheldon pose la question :
I know the most common form for retail businesses of calculating a price based on markup is:
Cost/(1 - Markup), but how is this supposed to work for a business that desires a markup of over 100%.
Harley Weston lui répond. |
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A 4 sided lot |
2008-06-03 |
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Pat pose la question :
If a lot of property is: front 127.87, back 156.17, one side
is
129.73, the other side is 125.00, then how much total acreage is
this.
Harley Weston lui répond. |
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The number of hours of daylight |
2008-06-03 |
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Marilyn pose la question :
Hi, could you please help me with this question?
In a city (in the Northern Hemisphere) the minimum
number of hours of daylight is 9.6 and the maximum
number is 14.4. If the 80th day of the year (March
21) has 12 hours of daylight, determine a sine
function which gives the number of hours of
daylight for any given day of the year. (Jan 1 = 1,
Jan 2 = 2, etc).
Thank you!
Harley Weston lui répond. |
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A quadratic equation |
2008-06-03 |
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Drew pose la question :
A solution of x^2-8x=-17 is
-4 or -4+I or 4 or 4+i
Janice Cotcher lui répond. |
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The x-intercepts of f(x)= 5sin (4x+pi/4) |
2008-06-03 |
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Tom pose la question :
Hi, how would I find where the x intercept in this function f(x)= 5sin (4x+pi/4)?
Janice Cotcher and Harley Weston lui répond. |
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Two consecutive negative even numbers |
2008-06-03 |
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Chelsea pose la question :
The sum of the squares of two consecutive negative even numbers is 100. Find the integers,
Penny Nom lui répond. |
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