Need some math help..come in if you think you can

[ninobrn99]

I can solve an equation, but when it comes to solving for a variable, it confuses the hell out of me!!

Can someone please explain the following?
A=1/2bh(b1+b2) solve for B1

The B's are to the power of 1 and power of 2. HELP!!

[ninobrn99]

is it 2a/bh-b2=b1?

[grouch0jr]

well, you want to isolate the variable you are solving for, so first you would divide the entire equation by 1/2bh, then you would be left with 2a/bh=b1+b2. then you subtract b2 and get 2a/bh-b2=b1. so yes, youre right.

[ninobrn99]

thanks. I wasn't sure if I needed to distribute h(b1+b2) that's what confused me.

[67CamaroRSSS]

Yes I can come in and no I can't help you.

[2002z28camaro]

Yes I can come in and no I can't help you.

he helped me with some speech homework freaking good in english i guess math is not his strong point

[grouch0jr]

he helped me with some speech homework freaking good in english i guess math is not his strong point

awesomest avtar ever

[grouch0jr]

thanks. I wasn't sure if I needed to distribute h(b1+b2) that's what confused me.

you could have distributed, but you would have had to do more steps. after multiplying through by the h, you would later have to divide it out.

A=1/2bh(b1+b2)

A=1/2bhb1+1/2bhb2 distribute

A-1/2bhb2=1/2bhb1 subract the b2 term

(A-1/2bhb2)/(1/2bh)=b1 divide by 1/2bh to isolate the b1

2A/bh-b2=b1 simplify

[ninobrn99]

grouch0jr, got another for ya if you can help
Find the slope intercept form of a line with the x-intercept -2 and y-intercept 3/2

[stephen02ws6]

i used to do this stuff in accelerated calc in high school but after 2 years forgot it cause who uses it.

[2002 WS6 KILLS]

Ummm....I think the answer is 3nk3iyu2-9ojqwkl;fnq3kp...right??


I always hated math!!!!!!!!!

[michaelinchains]

I always hated math!!!!!!!!!

tru-dat,but i luvs the pie

[grouch0jr]

this ones not so bad either. slope intercept form is:
y=mx+b
m is the slope and b is your y intercept. (when the line crosses the y axis, x will be equal to zero and cancel the m term).
so you already have your b, the y intercept.
y=mx+3/2
now you need to solve for m. youre given 2 points, the x intercept (-2,0) and the y intercept (0,3/2).
there are 2 ways to solve for the slope. first, is to calculate it using the two points. slope is defined as "rise over run", or the change in y divided by the change in x. so the formula would be m=(y1-y2)/(x1-x2).
or, you can plug one of the points into the y=mx+3/2. you cant use the y intercept point, since x is 0 it will cancel out the m, so you have to plug in the x intercept.

y=mx+3/2
(-2,0) x=-2 y=0

0=m(-2)+3/2

solve for m
m=3/4

so y=(3/4)x+3/2

haha, its a little early in the morning for me, so if any of that is unclear let me know.

[2002 WS6 KILLS]

Steelers Suck
Fly Eagles Fly!!!!

[grouch0jr]

Steelers Suck
Fly Eagles Fly!!!!

lol, thats a little random for this thread... but i totally agree

[2002 WS6 KILLS]

lol, thats a little random for this thread... but i totally agree

Not that random, see michaelinchains' avatar above your last post.

[michaelinchains]

Steelers Suck
Fly Eagles Fly!!!!

who won last night?

[2002 WS6 KILLS]

who won last night?

Just preseason dude, don't get excited.

[michaelinchains]

im not,"dude"

[2002 WS6 KILLS]

Ummmm....sorry, ur a chick??