Wednesday
May 22, 2013

# Posts by Ruby

Total # Posts: 156

physics.
A steel beam is used in the construction of a skyscraper. By what fraction (change in L)/Lo does the length of the beam increase when the temperature changes from that on a cold winter day (-15 degree F) to that on a summer day (+ 105 degree F)? I got 0.00144 for the answer, b...

economics
what is a country's excess quantity of demand to a nation's? exports or imports

problems faced in conserving kalimantan rainforest
The tropical rain forest aer home to over_of the world's species of life.

Algebra
Find the value of y in each formula if x= -3. y + 1 = 2(x - 5) Substitute -3 for x. The first step leaves you with this: y + 1 = 2 * (-8) = -16 Now solve for y by subtracting 1 from each side of the equation.

Algebra
Solve problem by showing necessary steps to resolve. 0.06q + 14 = 0.3q - 5.2 Subract 0.06 q from both sides. 14 = 0.24q - 5.2 Add 5.2 to both sides 19.2 = 0.24 q Finally, divide both sides by 0.24 You will end up with q on one side of the equation and a number which is the ans...

Math
What is the value of y if x = -3? y = 1 = 2(x-5) Plug in -3 for x, in the equation for y, and see what you get. I think you copied the problem wrong. Is the first = sign supposed to be a + or - sign? If not, you have already stated that y = 1. That cannot be true when x = -3. ...

Earth science
I would like to comfirm that the 4 cycles on Earth are: carbon, water and rock. I think the 4th one is the biosphere but am not sure as the biosphere contains all attributes necessary (including the atmosphere)for life to exist. Am I on the track? I do understand that the advi...

geology
there are 3 rock types:(a)igneous,(b)sedimentary,(c)metamorphic.If rock (a)were to cut across both other rocks and (c) is the oldest rock, describe the new relationship between the rocks. are you doing 103 by any chance im stuck on this q as well and thought it might be asking...

biology
in addition to the above a labelled diagram is also required to show the product cells derived from this cell at the telophase 2 stage of meiosis.there is no crossng over.what differences would there be in the product cells at telophase 2 of meiosis if there had been one cross...

biology
Help required, Gametes are produced in the process of meiosis. In humans, one pair of autosmes (chromosome 4) has a short arm and a long arm. On the short arm is a gene for Huntington disease (H) and on the long arm is a gene for red hair(R). Draw a labelled diagram to show th...

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