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I think he is speaking Spanish.

what

No problem! :)

My knowledge of logarithms is a bit rusty but I think you can say that

\(b^{2/3}=81\).

Now to solve for \(b\) we need to take the square root of both sides and then cube it, giving you 

\(b^{2/3\cdot3/2}=81^{3/2}\)

The exponent of b will be just 1, so now we have

\(b=729.\)

Thank you!

You can factor that equation to this: 49t^2+35-24=0

Now, factor this, and one of its roots will be positive. That positive root is the answer. 

(or, if you can't factor this, Use the quadtradtic formula!)

You do not have a bad teacher. Your teacher has a bad student.  I think you are bullshitting us about knowing how to do it. If not,

then post your fucking answers on here and someone will tell you if you are correct.

Thank you!

This might help: 

https://web2.0calc.com/questions/help-in-quadratic-graphing

:)

Using my calculator, I got a₉ = a₀.

What I meant to say is, in AoPS, they have a sneaky April Fools prank that I totally did not fall for.

I will assume it is of cylinder shape

volume of cylinder =  pi r² h

1100   =   pi  r^2  52/12                       (volume is given in ft³ so I converted 52 inches to feet)

1100 (12/52) / pi  = r^2         take the square root to find the radius in FEET

First put both equations in slope-intercept form to express the slope in terms of a.

Then multiply them together and set that product equal to -1 (The product of the slopes of two perpendicular lines is, for the most part, -1)

Then you solve for a using the quadratic formula or factoring.

 I think I answered this one before...or a VERY similar one 

5 d  +  2 h = 1200    Multiply THIS equation by - 2.5 and add to the next equation to get the third equation

2 d  +  5 h = 1425 

-10.5 d  = 1575

d = 150    or  $ 1.50     use this value for 'd' to sub into one of the equations to compute  h    

EP is right: The answer is (was) wrong but the method is right.

Your slop post of a question has a minus sign (-) that’s nearly invisible on a tablet.

You should present your questions more clearly. You should also learn to fuck yourself with solutions instead of just the answers. That is, instead of just laying there waiting to be fucked you should participate in the process; it’s more enjoyable for both parties

Did you at least do advanced guessing? 

Area  = s x s  = s^2

Perimeter = s+ s + s + s = 4s     when are they equal????

s² = 4s         divide both sides by 's'

s = 4       When the side length is 4 units    

                          the area and perimeter are the same numerical value  (BUT one has ' units^{2 '}  and the other is just ' units ' )

THAT is kinda sad.....you had to GUESS????  

FV = 530 (1+x)¹⁶ =  530 x 2

             (1+x)¹⁶ =2

           (1+x) =1.04427              x = .04427      4.43 % per hour

k = 1.04427               Future bacteria =(530)  1.04427^t

just now found out by guessing lol