Shen
This page lists questions and answers that were posted by visitors named Shen.
Questions
The following questions were asked by visitors named Shen.
Answers
The following answers were posted by visitors named Shen.
I helped my mother iron some clothes. (iron not ironing) I went to a PC room and played Star Craft with others online. (online should be one word)
13 years ago
They are all correct
13 years ago
3x+7y=-5 (i) 4x-3y=8 (ii) (i)x 4: 12x+28y=-20 (iii) (ii)x 3: 12x-9y=24 (iv) (iv)-(iii): -37y=44 y=-44/37 subs y into (i): 3x+7(-44/37)=-5 3x= -5+308/37 x=148/37
13 years ago
1) (cos^2x+1+2sinx+sin^2x)/cosx(1+sinx) = 2+2sinx/cosx(1+sinx) = 2(1+sinx)/cosx(1+sinx) = 2/cosx = 2secx i'm going to assume you know the identities i.e. cos^2x+sin^2x=1 2) (cosx x cosx/sinx)/-sinx = cos^2x/sinx/sin^2x = cos^2x/-sin^2x = -cot^2x
13 years ago
n=m/M n=117/22.99+35.45
13 years ago
a) let the width be a letter i.e. any letter of the alphabet, it doesn't matter although preferably w. b) w+3 for the new width, 2w+3 for the new length c) new width is 2+3 new length is 4+3, multiply together for the new area
13 years ago