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5^(x+1)=2(3^(2x)    this is equivalent to

5*5^x = 2(3^2)^x =

5*5^x = 2*9^x

This is probably best done graphically....{I can already see that the solution lies between x= 1 and x = 2}

1099 / 7.50   will give you your answer

I think you want the volume of a sphere....so we have....

(4/3)pi(12)^3 =  about 7238.23 cubic units

2log(3)+log(4)-1/2log(25)     .... we have

log3^2 + log4 - log25^(1/2)  =  using alogb = logb^a

log 9 + log 4 - log 5  =   using loga + logb - logc  = log[(a*b)/c]

log[(9*4) / 5] =

log(36/5)  =

about . 857

I assume you have  ⁴√[(x^8*y^6*z^7]  = (x^8*y^6*z^7)^(1/4)

And using the rule   (a^m)^n = a^(m *n)   we have

x^2 * y^(6/4) * z^(7/4) = x^2 * y^(3/2) * z^(7/4)    .....note.....we are assuming that y, z  > 0

The term will be

-C(10, 5)* (x^5) *(2^5)  =

- 8064x^5    ....so the coefficient is -8064

8x6yz6sqrt(z)

nope wrong 21

To answer this question, let's first try an easier question:

How any integers are greater than 3 but less than 10?

The answer is 6 and they are 4, 5, 6, 7, 8, and 9.

Yet, when we subtract 3 from 10, we get 7:  10 - 3 = 7. This is 1 more than the answer.

So, the number of integers greater than 87 and less than 321, we should subtract 87 from 321, and then subtract 1 from that answer:  (321 - 87) - 1  =  233!

e.g i mean how would i do 2 23/24 x 3 5/8 (from the person who asked the question) Thanks. 

The two digit positive numbers divisible by 5 are:  15, 25, 30, ..., 90, 95

(there are 17 of them).

Of them, those that are divisible by 3 are 15, 30, 45, 60, 75, and 90

(there are 6 of them).

That means, that there are 11 remaining ...

If this is a direct proportion, set up:

--->   y₂ / x₂  =  y₁ / x₁

--->   y₂ / 5  =  48 / 2

Cross multiply:

--->   2·y₂  =  5 · 48

--->   2·y₂  =  240

Divide both sides by 2:

--->   y₂  =  120

u - 9  =  7u + 7

Subtract u from both sides:

    -9  =  6u + 7

Subtract 7 from both sides:

   -16  =  6u

Divide both sides by 6:

   -16/6  =  u

--->  u  =  -8/3

You'll need to be more specific; does the 0.98 represent one standard deviation?

2xi(i - 4i²)  =  (2xi)(i) - (2xi)(1²)  =  2xi² - 2xi³

If i = √(-1), then i² = -1 and i³ = -i:

   --->   2xi² - 2xi³  =  2x(-1) - 2x(-i)  =  -2x + 2xi

If you have a rectangle that is 4 inches in length and 7 inches in width, simply multiply 4 by 7, which is 28. The formula is always l x w.

It's theoretically simply a matter of solving the equation, but not really in this case:

u - 9 = u + 7

First get all constants (regular numbers) on one side and all variables on the other:

u = u + 7 + 9 (add 9 to both sides)

u = u + 16 (simplify)

      ^ To get rid of this 'u', we must subtract 'u' from both sides:

u - u = 16 (subtract u from both sides)

0 = 16 (simplify -- any number minus itself is zero)

0 never equals 16!

Therefore, there is no value that could possibly be substituted in for u that would make the statement true.

Don't believe me? Try it:

What if u = 2?

2 - 9 = 2 + 7

-7 = 9

-7 NEVER equals 9!

Here's a shorter way to do it:

Take the original equation

u - 9 = u + 7

and subtract u from both sides.

-9 = 7

-9 NEVER equals 7!

i found it at the right top of the calculator you see the word click it and click fraction

i think its the 1/x button

i don't like trolls

what you just said

pounds

it would be 739898343710340970973223