Simplify
1.(-1/2-x)-(x/2(x-2))
2.Given that A=1/2(a+b)h.
^a.If A=24,a=2 and b=4,find the value of h.
^b.If A=40,a=3 and=8,find the value of b.
3.Given that 1/f=(1/u)-(1/v).
^a.If u=2 and v=3,find the value of f.
^b.If f=42 and u=6,find the value of v.
4.Given that S=(a/2)-b.
^a.If a=8 and b=5,find the value of S.
^b.If S=15 and b=7,find value of a.
5.Change the subject of the following formulae to x.
^a.4mx=3(n-x)
^b.x/(x-y)=z
有睇吾明嘅地方可以問我
知道答案的plz help!!!!
更新1:
仲有一件事,就係可吾可以教下小弟數呢!!! 如果教完之後我識嘅,咁我就比你(100點) 吾識不過有比心機教都有(75點) 有興趣嘅通知小弟一下,我先加粉絲 因為暑假快完啦,不過仲未做曬d暑期作業, 所以想搵人教下我咁囉,同埋我都吾想成日抄人d答案 希望有心人能幫助!!!!!!!!
更新2:
如上,求助內容有: Linear Equation in two Unknowns Rate and Ratio Congruence and Similarity Simple Introduction to Deductive Geometry Rational and Irrational Numbers 教我點簡單d計,例題等
