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Find the resultant of this displacement pair |
2009-02-22 |
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From katydidit:
Find the resultant of this displacement pair:
500 miles at 75 degrees east of north and
1500 miles at 20 degrees west of south.
How do I graph this and how do I solve this problem?
Answered by Penny Nom. |
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Surface area and scale factors |
2009-02-21 |
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From tina:
the surface area of a sphere is about 86 ft (2) find the surface area of a larger sphere that has a scale factor of 4
Answered by Penny Nom. |
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6 golfers playing 8 rounds |
2009-02-21 |
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From evan:
I have a group of 6 golfers playing 8 rounds. we would like to rotate the 3 somes so each person golfs with different people as many times as possible
Answered by Chris Fisher. |
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Averaging percentages |
2009-02-21 |
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From Chris:
Ok I'll give you a simple example of what I'm doing. Lets say that on one forum, a memebr has made 52 posts out of the 412 posts made altogether. Then on another forum, the same person has made 10 posts out of the 60 posts altogether. What percentage of the posts has this person made in these 2 fourms combined.
Answered by Robert Dawson and Harley Weston. |
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Find all values of 2sin4x + (Sqrt)3 = 0, in [0, 2pi] |
2009-02-21 |
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From Sam:
Find all values of 2sin4x + (Sqrt)3 = 0, in [0, 2pi].
Answered by Harley Weston. |
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Fred in his canoe |
2009-02-21 |
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From Susan:
Fred paddled for 4 hours with a 7 km/hr current to reach a campsite. The return trip against the same current took 9 hr. Find the speed of Fred's canoe in still water. (Remember to include correct units)
Answered by Penny Nom. |
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Three people working in pairs |
2009-02-21 |
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From bevaz:
A and B can together do a piece of work in 6 days, B and C together in 20 days and C and A in 7.5 days. how long will they require separately for the work?
Answered by Penny Nom. |
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The graph of y = -6 |
2009-02-21 |
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From Barb:
I was given the problem that says "graph the line y = -6" how do I find all the set points that have a y coordinate of -6? I am so lost lost and have no clue how to start. Can you help me please? thanks.
Answered by Penny Nom. |
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Find an expression for the nth term |
2009-02-20 |
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From Dawn:
Find an expression for the nth term:
x= 1 2 3 4...n
y=11 8 5 2...?
I think it's a linear relation but don't know the equation that goes with it.
Answered by Stephen La Rocque. |
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How long will it take Jake to catch up? |
2009-02-20 |
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From Rebecca:
John is walking 2 miles per hour. Jake leaves home 15 minutes later and is walking 5 miles per hour . How long will it take Jake to catch up ?
Answered by Penny Nom. |
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Washing the dishes |
2009-02-20 |
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From rm:
a woman washing a large number of dishes after a meal was asked how many people attended the meal.
she did not know but 'every two used a dish of rice between them, every three a dish for soup and every
four a dish for meat, and there were 65 dishes in all.' how many people were there?
Answered by Robert Dawson. |
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Linear systems |
2009-02-20 |
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From Rose:
I have been having trouble trying to figure out these three math problems , I need help breaking them down so I could understand them better please help.
1. x = 7 - x
2 x - y + 8
2. 8 x + 5 y = 1 8 4
x - y = 3
3. y + 2 x = 3
y + 2 x = 4
I can't figure out how to break them down in the right order.
Answered by Penny Nom. |
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An octagonal pyramid |
2009-02-20 |
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From JUDY:
THE BASE OF A PYRAMID IS A REGULAR OCTAGON. HOW MANY CONGRUENT TRIANGULAR FACES DOES THE PYRAMID HAVE?
Answered by Penny Nom. |
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The focal point of a parabolic surface |
2009-02-20 |
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From kishore:
how to find out the focal point of a parabolic surfaces
Answered by Chris Langdon. |
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What deminsions should my box be? |
2009-02-19 |
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From Mary:
My item is 57cm x 36cm x 6cm and I want to put 20 items is 1 box. What deminsions should my box be?
Answered by Stephen La Rocque. |
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