# Posts by Shen

Total # Posts: 11

algebra
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

Math
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

English
They are all correct

English
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)

orgenic
n=m/M n=117/22.99+35.45

Trigonometry
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

Anthropology
Describe the correlation between bride wealth and stability of marriage. How is your understanding of this relationship impacted by the status of women in pastoral societies?

math
you are playing a card game with a full deck of 52 cards. you win if you draw a red card that is a multiple of 5. what are your chances of winning on your first draw?

math
probably

Trigonometry
How do you simplify these equations: 1.)(2/cot^3(x) - cot^2 (x)) + (2/cot (x)-2) 2.) (2/ tan^2 (x)) + (2/ tan(x) -2)

spanish
how do you talk obout you daily routine

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