03/31/13
how can you tell that a system of inequalities does not have a solution?
please help i also need an example
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03/31/13
complete the square of the following expression 3-2x-x^2
Please show the whole method and answer in my book is 4-(x+1)^2
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03/30/13
i have a parabola has an equation y=12-x^2 . what is the specifications ?
i am going to solve a problem which is my college assignment??????
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03/28/13
what factored trinomial equation equals 0?
help meeeeeeee pleaseee
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03/28/13
The perimeter of a triangle is 47 miles. The first side is 5 miles less than twice the second and the third is 2 miles more than the first.
Find the lengths of each side
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03/27/13
If the ratio of grapes to walnuts to oranges is 9:3:11, how many grapes are there if the total number of fruits is 161?
If the ratio of grapes to walnuts to oranges is 9:3:11, how many grapes are there if the total number of fruits is 161?
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03/26/13
Traveling Word Problem
Two planes left an airport at the same time in opposite directions. One plane flies twice as fast as the other. After 4 hours, they are 2,160 miles apart. How fast is each plane traveling?
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03/26/13
I need help changing the general form of an ellipses to standard form.
I NEED HELP!!!
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Can anyone help me with these science questions on Astronomy: Earth and Space Systems/ The Solar System?
Most of the frozen ice in a comet's ______ vaporizes after the comet's many trips around the sun.
The Sun produces energy by fusing hydrogen atoms, into _____ atoms in its core.
Planets were...
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03/26/13
point (3,-2) crossing through m=0
2 points crossing through 0
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03/24/13
how would you divide (6-q+8q cubed-4q squared)by (2q-2)
please show the work
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03/24/13
A certain mountain has an elevation of 19,570 feet.
In 1904, the glacier on this peak covered 10 acres. By 2000 this glacier had melted to only 1 acre.
(a) Assume that this glacier melted at a constant rate each year find this yearly/acres rate?...
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03/24/13
A certain region is losing about 15 million acres of rain forest each year
(a) Find a linear function f that calculates the change in acres of rain forest in millions in x years. Type an expression using x as the variable f(x)=
(b) Find f(8) and interpret the result (...
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03/24/13
quadratic word problem
Year: 1980 1985 1990 1995 1 18.8 22.6 26.0 29.0 The table lists the...
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03/24/13
distance traveled
the table lists the distance traveled by a falling object where t is elapsed time in seconds and d is distance in meters.
t: 0 1 2 3 4 5 ...
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03/24/13
A barrel contains 164 gallons of paint and is being drained at a constant rate of 13 gallons per minute.
Write an equation that models the number of gallons, g, after t minutes
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03/24/13
The costs of driving a car includes voth fixed costs and mileage costs.
Assume that it costs $166.50 per month for insurance and car payments and $0.23 per mile for gasoline, oil, and routine maintenance.
(a) Find values for m and b so that y=mx+b models the monthly...
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