7th grade math
2006-08-01 13:38:01 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
there are lots of math formulas....what are you trying to do?...
2006-08-01 13:42:07 · answer #1 · answered by TJ 4 · 0⤊ 0⤋
Algebra:
(a+b)^2 = a^2 + 2ab + b^2
(a-b)^2 = a^2 - 2ab + b^2
(a+b)(a-b) = a^2 - b^2
Geometry:
Area of sq. = side * side
Perimeter of sq. = 4 * side
Area of rect. = length * breadth
Perimeter of rect. = 2 * (length + breadth)
Area of circle = pi * radius * radius
Circumference of circle = 2 * pi * radius
Interest
Simple Interest = pnr/100
Compound Interest = p *((1 + r/100)^n)
i wish i cud be reminded of other chapters of mathematics to give formulae...
2006-08-02 06:28:10 · answer #2 · answered by yrzfuly 3 · 0⤊ 0⤋
Ask questions to recieve answers.
2006-08-01 20:43:13 · answer #3 · answered by SAMUEL D 7 · 0⤊ 0⤋
(a+b)² = a² + b² + 2 ab
(a-b)² =a² + b² - 2ab
learn these today, tomorrow, i will teach u more lolz
2006-08-01 20:51:37 · answer #4 · answered by Da Sahar SToRaY 2 · 0⤊ 0⤋
yes
2006-08-01 20:42:16 · answer #5 · answered by Tommy 4 · 0⤊ 0⤋
What do you want to know?
2006-08-01 20:44:07 · answer #6 · answered by Mattman 6 · 0⤊ 0⤋
Oh sure..... ya..... I know the answer to that one....
the answer is ____________
2006-08-01 20:44:38 · answer #7 · answered by Jon P 3 · 0⤊ 0⤋
what do u need?
2006-08-01 20:41:21 · answer #8 · answered by marcos m 2 · 0⤊ 0⤋
(a+b)²=a²+b²+2ab
(a-b)²=a²+b²-2ab
a²-b²=(a-b)(a+b)
2006-08-02 01:45:02 · answer #9 · answered by priya 2 · 0⤊ 0⤋
OK
2006-08-01 22:16:16 · answer #10 · answered by MollyMAM 6 · 0⤊ 0⤋