Wednesday
July 23, 2014

Posts by kizzy


Total # Posts: 14

Math
The passenger section of a train has width 2x-7, length 2x+3 and height x-2 with all dimensions in metres. Solve a polynomial equation to determine the dimensions of the section of the train if the volume is 117 m^3

Math
An equilateral triangle is inscribed in a circle. Each side of the triangle has length x. What is the area of the circle? Please help

Math
An equilateral triangle and a regular hexagon have equal perimeters. What is the area of the triangle, if the area of the hexagon is 120? I don't get it

Help math
The length of a certain rectangle is quadrupled and the width is tripled. What is the ratio of the area of the new enlarged rectangle to the original rectangle?

Physical science
a 5.0 x 10^1g piece of a metal in thermal equilibrium with boiling water is removed and placed in 1.0 x 10^2g of a cooling water bath (specific heat= 1.00cal/g degrees celsius at 20.0 degrees Celsius . The final temperature of metal and the water bath is 28.0 degrees celsius W...

Physical Science
A 250.0 kg roller coaster has 2.000 x 10^4 Joule of potential energy at the top of the hill , if the track is frictionless , what is the coasters velocity at the bottom of the hill?

Physical science
How much work is required to stop a car that is 800.0 kg car that is traveling at 20.0 m/s?

Physical science
How much work is required to stop a car that is 800.0 kg car that is traveling at 20.0 m/s?

math
what is equivalent fractions for 6/5?how do you get the answer

math help
evaluate meantally 3-15+4 -34-6+12 5(-9-4) 5-3(-4) 1/2(-26) 14-21/-7 -5^2 (-5)^2 -8 -28 -65 -13 1 25

math
what is partial-quotient divison???

science
what causes the northern and southern lights to occur yyftyrf da ert faerb uoi gfa he tue yuo da dietions da en

science
how is the earth's magnetism useful It provides a navigation mark for hikers and sailors.

home-econimics
yes

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