# Unknown number

I think number. If subtract from the twelfth square the ninth square I get a number 27 times greater than the intended number. What is this unknown number?

**Result****Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):**

**Showing 0 comments:**

**Be the first to comment!**

#### To solve this example are needed these knowledge from mathematics:

## Next similar examples:

- Theorem prove

We want to prove the sentence: If the natural number n is divisible by six, then n is divisible by three. From what assumption we started? - Linear imaginary equation

Given that ? "this is z star" Find the value of the complex number z. - Ball game

Richard, Denis and Denise together scored 932 goals. Denis scored 4 goals over Denise but Denis scored 24 goals less than Richard. Determine the number of goals for each player. - Balls

We have n identical balls (numbered 1-n) is selected without replacement. Determine 1) The probability that at least one tensile strength number coincides with the number of balls? 2) Determine the mean and variance of the number of balls, which coincides. - Proof I

When added to the product of two consecutive integers larger one, we get square larger one. Is this true or not? - Equation

How many real roots has equation ? ? - The determinant

The determinant of the unit matrix equals 7. Check how many rows the A matrix contains. - Five members

Write first 5 members geometric sequence and determine whether it is increasing or decreasing: a_{1}= 3 q = -2 - Geometric sequence 4

It is given geometric sequence a_{3}= 7 and a_{12}= 3. Calculate s_{23}(= sum of the first 23 members of the sequence). - Intercept with axis

F(x)=log(x+4)-2, what is the x intercept - Solve 3

Solve quadratic equation: (6n+1) (4n-1) = 3n^{2} - Tenth member

Calculate the tenth member of geometric sequence when given: a_{1}=1/2 and q=2 - Asymptote

What is the vertical asymptote of ? - Value

Find the value of the expression: 6!·10^-3 - Inverse matrix

Find how many times is the larger determinant is the matrix A, which equals 9 as the determinant of its inverse matrix. - GP - 8 items

Determine the first eight members of a geometric progression if a_{9}=512, q=2 - Powers 3

2 to the power of n divided by 4 to the power of -3 equal 4. What is the vaule of n?