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Vertices |
2007-09-18 |
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From Richard:
Please help. Do not understand vertices, as in how many in a cone, hemisphere, etc.
Answered by Harley Weston. |
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Filling a planting bed |
2007-09-18 |
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From Luke:
How many 40lbs bags will it take to fill area 21feet long 45inchs wide 9 inch deep?
Answered by Penny Nom. |
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The perimeter of a regular polygon |
2007-09-18 |
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From Ashwynn:
why does the area of regular polygons with a perimeter of 1000m increase as the number of sides increase?
Answered by Stephen La Rocque. |
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The range of a projectile |
2007-09-18 |
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From Claudette:
This is a maximum minimum problem that my textbook didn't even try to give an example of how to do it in the text itself. It just suddenly appears in the exercises.
Problem: The range of a projectile is R = v^2 Sin 2x/g, where v is its initial velocity, g is the acceleration due to gravity and is a constant, and x is the firing angle. Find the angle that maximizes the projectile's range.
The author gives no information other than the formula.
I thought to find the derivative of the formula setting that to zero, but once I had done that, I still had nothing that addressed the author's question.
Any help would be sincerely appreciated.
Claudette
Answered by Stephen La Rocque. |
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Find my number using the following clues: |
2007-09-18 |
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From T:
Find my number using the following clues:
my number will make an array 2 rows wide
my number is greater than 5
my number is less than 30
my number will make a square array
my number is________?
I was not sure where to begin with this word problem - can you help??
Thank you,
T
Answered by Penny Nom. |
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How do I determine how many tons, 15 yards of top soil is? |
2007-09-18 |
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From Terry:
One company is selling topsoil by the yard and another by the ton,
how do I determine how many tons, 15 yards of top soil is?
Answered by Penny Nom. |
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Prove that any two consecutive integers are relativley prime. |
2007-09-18 |
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From Michael:
Im not very good at proofs and I was wandering if you would be able to help me with the following question:
Prove that any two consecutive integers is relativley prime.
Thanks a million.
Answered by Penny Nom. |
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A word problem |
2007-09-17 |
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From Martin:
One more than the difference between 18 and seven times a number is -9
Answered by Stephen La Rocque. |
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A fraction that cannot be simplified |
2007-09-17 |
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From Kevin:
Make a fraction that cannot be simplified and has 24 as its denominator?
Answered by Stephen La Rocque and Chris Langdon. |
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The ratio of arm span to height |
2007-09-17 |
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From Chandler:
I am doing ratios and I was wondering if... well let me explain first. I have data on the arm span and heights of 10 students including myself now i have my measurements of me are 66inches arm span. and 66 inches height. my second piece of data is 71 inches arm span and 67 inches height now my ratio is 71:67 right? i thought i would need to simplify. but i cant really simplify this ratio and these numbers. what do I do?
Answered by Stephen La Rocque. |
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Two cars |
2007-09-17 |
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From Lanie:
Two cars enter the Florida Turnpike at Commercial Boulevard at 8:00am, each heading for Wildwood. One car's average speed is 10 miles per hour more than the other's. The faster car arrives at Wildwood at 11:00 am, 1/2 hour before the other car. What is the average speed of each car? How far did each travel?
Answered by Stephen La Rocque. |
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Taping the gym floor |
2007-09-17 |
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From Marina:
You are helping the coach tape lines on the gym floor to divide the length of the gym into 8 lanes of the same size. If it takes one minute to tape a line,how long will it take to do the job. State the strategy /strategies you used and why?
Answered by Penny Nom. |
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Is 10 to the power of 1 the same as 10? |
2007-09-17 |
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From Mac:
Is 10 to the power of 1 the same as 10?
Answered by Penny Nom. |
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A 5 by 5 checkerboard |
2007-09-17 |
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From Darren:
Hi, I'm Darren and i have some questions to ask you about this problem:
In a 5 by 5 checkerboard : how many 2 by 2 squares are there,
what other sizes of squares do you need to count and how many of of each size of squares
can you find; how many squares did you find in all
Answered by Victoria West. |
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The complement of an angle |
2007-09-16 |
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From tom:
The measure of the complement is 12 more than twice the original angle. Find the measure of the angles.
Answered by Stephen La Rocque. |
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