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42 

enough said.

"b" is a variable, which represents any number.  Here's a link to a good definition!!!

Well everybody is cool to a sun or to lava, or the ever expanding amount of heat produced by humans.

Answer: 53

1. Assign each digit a variable, let's call the 10's digit x, and the 1's digit y.

2. Set up a system of equations. 

    The first equation is the simplest, it is that (x + y = 8)

    The second is tougher, The value of the number in terms of x and y is (10x + y). Assume the digits are 1 and 2, if x = 1 and y = 2 then we know the number is 12, but 1 + 2 is not 12, it is 3. In order to get 12 we must multiply the 10's digit (x) by 10 and add the y digit, since it is a 2 digit number. If it was a 3 digit number then the 100's digit would be multiplied by 100 and so on. 

    So now this gives us the second equation (10x + y = 11x - 2) the second part comes from the fact that the number is 11 times the 10's digit minus 2. 

    Now use substitution, from the first equation we get that (x = 8 - y). If we substitute this in for all the x's in the 2nd equation, and simplify we would get (80 - 9y = 86 - 11y). Simplify again and we get (2y = 6). 

Now you can do the rest.

That's cross multiplication by the way, tried to post earlier but didn't come through apparently sorry!

Yes, this is. Can you please  help me to resolve it?

Multiply the numerators then the denominators. So, $${\mathtt{4}}{\mathtt{\,\times\,}}{\mathtt{900}}$$ and $${\mathtt{9}}{\mathtt{\,\times\,}}{\mathtt{1}}$$.  That makes $${\frac{{\mathtt{3\,600}}}{{\mathtt{9}}}}$$ . Simplify that into $${\frac{{\mathtt{400}}}{{\mathtt{1}}}}$$, which is 400. That's you're answer!

This is the form of an equation of a lline.......what is your question???

The surface area is given by    2 * pi * r * h   where r and h are the radius......so we have...

Sa  = 2 x pi x 2.6 x 5.5  =   ???

You can evaluate this on a calculator

Very nice, Anima.....!!!!

We have log₂₅₆ 4

We can use the "change of base" rule to evaluate this

It says that  log_a b  =   logb / log a

So  log₂₅₆ 4    becomes   log 4 / log 256    .......and you can do this one on a calculator.....

Here is the annual amount

A = 3000(1 + .06)^10 = 3000(1.06)^10 =   ???

Here is the semi-annual amt

A = 3000(1 + .06/2)^(10*2)  = 3000(1.03)^(20)  =  ???

Quarterly

A = 3000(1 + .06/4)^(10*4) = 3000(1 + .015)^(40) = 3000(1.015)^(40)  = ???

Daily

A= 3000(1 + .06/365)^(10*365)  = 3000(1 + .06/365)^(3650)  = ???

I'll let  you evaluate the amounrs for yourself.......make sure to do the things in the parentheses, first......then the exponent on that.....then....multiply by 3000

If g(x)= 1/2x+8 and h(x)= 1/2x-2 What is the value of g(h(-8)

We want to  put -8 into ",h" evaluate that, and then put that result into "g"   ....so we have

(1/2)(-8) - 2  =   -4 - 2   = -6

And

(1/2)(-6) + 8 =  -3 + 8  = 5

(sqrt(2) sin(x)) +1=0   subtract 1 from each side

√2 sin(x) = -1             divide by √2 on each side

sin(x)  =-1 / √2

And this occurs at 5pi/4 and at 7pi/4.......on [0, 2pi ]

Jesus, that was so simple , Melody.......I was trying to do all sorts of "exotic" things to figure this out......LOL!!!.......there's genius in simplicity......!!!

rooh naym fe alhamam

yes

You can simplify this but you cannot solve it completely without the values for a and b. Basically all you have to do in this problem is add the two a's together so you have:

1+1/5a+3/5b+4/5a

1/5a+4/5a= 5/5a= a

1+a+3/5b 

-x+(-x+11)=2+(4x+3)

Simplify
-2x+11=4x+5

Subtraction Property of Equality
-2x+6=4x

Addition Property of Equality
6=6x

Division Property of Equality
6/6=x

Simplify

1=x

If you have any questions just ask!

55j²6k²

The question is already in simplest form, could you clarify what you mean better?

0 goes into 1 an unreal number of times so the answer would be undefined.

The question is already in the order of operations (multiplication and division are on the same level, so which comes first is the one you do first), because subtraction comes last and multiplication and division come before that. So, you would calculate 0.015/7.35=an unreal number so it would remain a fraction, then you would do (0.015/7.35)*10, With this equation you would multiply the numerator by 10 so the new fraction is 0.15/7.35 you would subtract this fraction by the whole number 6, so to make it possible to subtract from the numerator you would multiply 6 by the denominator, 6*7.35=44.1, 0.15-44.1=-43.95, the new fraction is now -43.95/7.35, this cannot be simplified so this fraction is your answer.