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15.86 acres |
2016-04-21 |
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Ronald pose la question :
If a rectangular piece of land is 1320 ft. on one side, how many feet would be required on the other side to equal 15.86 acres?
Penny Nom lui répond. |
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A square of side length 4x-3 units |
2016-04-20 |
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Bryan pose la question :
Find an expression that represents the area of a square with side length 4x-3
Penny Nom lui répond. |
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External and interior angles of a regular polygon |
2016-04-19 |
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pearl pose la question :
a polygon has n sides.The exterior angle is 8 times the interior angle
find the value of the interior angle
find the value of n
Penny Nom lui répond. |
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The derivative of x! |
2016-04-16 |
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Sang pose la question :
How to find the derivative of x! and integral of x!
Penny Nom lui répond. |
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Heights at various points along an arc |
2016-04-15 |
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Isiah pose la question :
So I am working on a problem with a few friends; you have an arc with the center of its chord at 0,0. We also have a known sagitta and a known radius of curvature.
How do we calculate the height extending in both the positive and negative directions?
Central sag: 2.48
Chord length: 9.6
Penny Nom lui répond. |
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Sloping my yard away from my house |
2016-04-15 |
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Harold pose la question :
I need to slope a area of my yard away from my house and garage. The length of my house is 80 feet long and i need to slope it 22 feet away. I want to raise the dirt at the foundation by 6 inches and slope it down to nothing at the width of 22 feet. How much soil would i require?
Penny Nom lui répond. |
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A scale factor |
2016-04-13 |
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tonya pose la question :
What is the scale factor for the two figures regular octagon with 15 and 9 written in decimal form
Penny Nom lui répond. |
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Mrs. Gibson has 3 children |
2016-04-12 |
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MJ pose la question :
Mrs. Gibson has 3 children. The older ones are twins. The youngest one is 3 years
younger than the twins. If the sum of their ages is 102, how old is the youngest
one?
Penny Nom lui répond. |
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The area and the perimeter of a rectangle |
2016-04-12 |
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kimberly pose la question :
is there a relationship between the are and the perimeter of a rectangle?
explain.
Penny Nom lui répond. |
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tan15° |
2016-04-11 |
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JOHN pose la question :
find the exact value of tan15° in surd form.
Penny Nom lui répond. |
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The diagonal of a 10 acre square |
2016-04-11 |
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Derrick pose la question :
I own 100 acre square of land. I want to run from farthest corner of property to farthest corner, Diagonally. How many miles would I have traveled?
Penny Nom lui répond. |
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Conversion of an equation |
2016-04-11 |
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Marie pose la question :
How to you convert the equation of a line from x-intercept form
(y=(x-x1)(x-x2)) to general form (y=ax^2+bx+c) if it involves square
roots?
For example:
Convert this equation to general form: y=(x+the square root of 5)^2
Thanks for the help!
Penny Nom lui répond. |
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A road trip word problem |
2016-04-10 |
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Marc pose la question :
While on a road trip I imagined this random word problem. Suppose I start a trip of 75 miles. My initial speed is 75 miles per hour. After every mile traveled I decrease my speed by one mile per hour. After the first mile I decrease my speed to 74 miles per hour and so on for each subsequent mile traveled. How long will it take to complete the 75 mile journey?
Penny Nom lui répond. |
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The area of a circle and a square |
2016-04-10 |
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Richard pose la question :
I cannot understand why if you have a perimeter say of 4 units as the circumference of
a circle then you reshape it into a square you lose very approximately some 20% of its
volume but the perimeter length stays the same.
Can you please explain this to me as to why the volume decreases.
Penny Nom lui répond. |
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A stained glass cone lamp |
2016-04-09 |
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Edwin pose la question :
In making a 16" dia. cone lamp (stained glass), how many square feet of glass do I need.
Penny Nom lui répond. |
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