Wednesday, February 24, 2010
What a compound is.
A chemical compound is a pure chemical substance that is composed of 2 or more chemical elements that cannot be separated by physical means. Examples include water (H2O), carbon dioxide(CO2) and Bucky balls (C60).
Thursday, January 7, 2010
Math Homework help for 1/07
Math homework "help"
Formula for finding the area of the triangles:
1/2bh=A
or
bh/2=A
so the formulas (and subsitutions) are as follews
1.
triangle type:A right scalene triangle
triangle area:16cm2
triangle formula work:
1/2bh=A
1/2 8(4)=A
1/2 32=A
16=A
2.
triangle type:A right scalene triangle
triangle area:25cm2
triangle formula work:
1/2bh=A
1/2 5(10)=A
1/2 50=A
25=A
3.
triangle type:A obtuse scalene triangle
triangle area:13.5cm2
triangle formula work:
1/2bh=A
1/2 3(9)=A
1/2 13.5=A
13.5=A
4.
triangle type:A obtuse scalene triangle
triangle area:9cm2
triangle formula work:
1/2bh=A
1/2 3(6)=A
1/2 18=A
9=A
5.
triangle type:A acute scalene triangle
triangle area:16cm2
triangle formula work:
1/2bh=A
1/2 8(4)=A
1/2 32=A
16=A
6.
triangle type:A acute scalene triangle
triangle area:25cm2
triangle formula work:
1/2bh=A
1/2 5(10)=A
1/2 50=A
25=A
7.
triangle type:A right scalene triangle
triangle area:13.5cm2
triangle formula work:
1/2bh=A
1/2 3(9)=A
1/2 27=A
27=A
Formula for finding the area of the triangles:
1/2bh=A
or
bh/2=A
so the formulas (and subsitutions) are as follews
1.
triangle type:A right scalene triangle
triangle area:16cm2
triangle formula work:
1/2bh=A
1/2 8(4)=A
1/2 32=A
16=A
2.
triangle type:A right scalene triangle
triangle area:25cm2
triangle formula work:
1/2bh=A
1/2 5(10)=A
1/2 50=A
25=A
3.
triangle type:A obtuse scalene triangle
triangle area:13.5cm2
triangle formula work:
1/2bh=A
1/2 3(9)=A
1/2 13.5=A
13.5=A
4.
triangle type:A obtuse scalene triangle
triangle area:9cm2
triangle formula work:
1/2bh=A
1/2 3(6)=A
1/2 18=A
9=A
5.
triangle type:A acute scalene triangle
triangle area:16cm2
triangle formula work:
1/2bh=A
1/2 8(4)=A
1/2 32=A
16=A
6.
triangle type:A acute scalene triangle
triangle area:25cm2
triangle formula work:
1/2bh=A
1/2 5(10)=A
1/2 50=A
25=A
7.
triangle type:A right scalene triangle
triangle area:13.5cm2
triangle formula work:
1/2bh=A
1/2 3(9)=A
1/2 27=A
27=A
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