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/sci/ - Science & Math


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5041239 No.5041239 [Reply] [Original]

A= 1/2 h (B+b) solving for B

what do I need to do?

>> No.5041267

>>5041239
B= (2A/h)-b

>> No.5041290

>>5041267

can you elaborate what you did so I can understand it better.

>> No.5041311

>>5041290
It's just rearrangement. How can you not know how to do that?

>> No.5041317

>>5041311

Because I can't picture the rearrangement. It takes me seeing it different ways to get it straight that's why I am asking what I need to do.

>> No.5041326 [DELETED] 

>>5041290

multiply both sides by 2
divide both sides by h
subtract b from both sides

just curious, can you solve for x in this equation?

3x -2 = 0

>> No.5041334

>>5041326

x= 2/3

the way you broke that down though, makes sense, what i keep forgetting is to just do the same thing to each side. fuck it if it take 7 pages, i just have to do it the long way

>> No.5041346 [DELETED] 

>>5041334

there is nothing wrong with doing it "the long way". as a matter of fact, it helps to eliminate errors.

don't develop a negative attitude about math, and you might find that it isn't so bad.

>> No.5041357

If the voltage, V, in an electric circuit is held constant, the current, I, is inversely proportional to the resistance, R. If the current is 90 milliamperes when the resistance is 5 ohms, find the current when the resistance is 15 ohms.

>> No.5041358
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5041358

>>5041239

If it takes him 7 pages to do this, he should an hero..

>> No.5041360
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5041360

>>5041357

V = IR (ohms law)

>> No.5041378

we used to do speed tests. i can't think maths fast and accurately. i can only vocabulary magnificently at absurd acceleration.

>> No.5041386

While traveling at a constant speed in a car, the centrifugal acceleration passengers feel while the car is turning is inversely proportional to the radius of the turn. If the passengers feel an acceleration of 16 feet per second per second when the radius of the turn is 40 feet, find the acceleration the passengers feel when the radius of the turn is 160 feet.

>> No.5041389

>>5041386
Ac = v^2 / r

>> No.5041391

ACCELERATION OCCSOLOROTION OCCSOLOROTION OCCSOLORTION OCCSOLOROTION OCCSOLOROTION

smock