math grade 8 please help!!!
ok thank u!!
Saturday, November 23, 2013 at 5:30pm
from the 2nd ---> y = x+4 sub into the 1st x^2 + (x+4)^2 = 58 2x^2 + 8x+16-58 = 0 x^2 + 4x - 21 = 0 (x+7)(x-3) = 0 x = -7 or x = 3 if x = -7, y = -7+4 = -3 if x = 3 , y = 3+4 = 7 x=3, y=7 or x=-7, y = -3
Saturday, November 23, 2013 at 4:56pm
Grade 8 Math
A garden will be made up of a parallelogram, a rectangle and a triangle. The garden must have an area of 500m2. Draw two possible gardens. Determine the dimensions of each part of the garden, and justify your choice of these dimensions.
Saturday, November 23, 2013 at 4:40pm
8th grade science :(
This site has a good explanation plus diagrams. http://hyperphysics.phy-astr.gsu.edu/hbase/tide.html
Saturday, November 23, 2013 at 3:41pm
Math grade 9 and up
x/s + y/w = 1 s/x + w/y = 4 You can use substitution. From the first equation, wx + sy = sw x = (sw - sy)/w Substitute to the second equation: s/x + w/y = 4 sy + wx = 4xy sy + (w)((sw - sy)/w) = 4((sw - sy)/w)y sy + sw - sy = 4y(sw - sy)/w sw^2 = 4swy - 4sy^2 4sy^2 - 4swy + sw...
Saturday, November 23, 2013 at 9:11am
tensionbottom=mg+mv^2/r solve for v. force on set must equal tension... b.total acceleration is a vector of g downward, and mv^2/r along the radial. but tension alone, along the radial, tension=mgcosTheta+mv^2/r but tension and gravity force=net force net force=mass*...
Saturday, November 23, 2013 at 8:59am
5th grade math
h+f = 120 h+p = 230 p = 6f h+6f = 230 h+6(120-h) = 230 h+720-6h = 230 -5h = -490 h = 98
Friday, November 22, 2013 at 6:28pm
7 grade L.arts
ok thank you for the advice :)
Friday, November 22, 2013 at 2:32pm