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15.86 acres |
2016-04-21 |
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From Ronald:
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?
Answered by Penny Nom. |
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A square of side length 4x-3 units |
2016-04-20 |
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From Bryan:
Find an expression that represents the area of a square with side length 4x-3
Answered by Penny Nom. |
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External and interior angles of a regular polygon |
2016-04-19 |
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From pearl:
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
Answered by Penny Nom. |
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The derivative of x! |
2016-04-16 |
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From Sang:
How to find the derivative of x! and integral of x!
Answered by Penny Nom. |
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Heights at various points along an arc |
2016-04-15 |
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From Isiah:
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
Answered by Penny Nom. |
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Sloping my yard away from my house |
2016-04-15 |
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From Harold:
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?
Answered by Penny Nom. |
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A scale factor |
2016-04-13 |
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From tonya:
What is the scale factor for the two figures regular octagon with 15 and 9 written in decimal form
Answered by Penny Nom. |
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Mrs. Gibson has 3 children |
2016-04-12 |
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From MJ:
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?
Answered by Penny Nom. |
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The area and the perimeter of a rectangle |
2016-04-12 |
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From kimberly:
is there a relationship between the are and the perimeter of a rectangle?
explain.
Answered by Penny Nom. |
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tan15° |
2016-04-11 |
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From JOHN:
find the exact value of tan15° in surd form.
Answered by Penny Nom. |
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The diagonal of a 10 acre square |
2016-04-11 |
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From Derrick:
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?
Answered by Penny Nom. |
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Conversion of an equation |
2016-04-11 |
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From Marie:
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!
Answered by Penny Nom. |
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A road trip word problem |
2016-04-10 |
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From Marc:
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?
Answered by Penny Nom. |
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The area of a circle and a square |
2016-04-10 |
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From Richard:
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.
Answered by Penny Nom. |
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A stained glass cone lamp |
2016-04-09 |
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From Edwin:
In making a 16" dia. cone lamp (stained glass), how many square feet of glass do I need.
Answered by Penny Nom. |
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