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nikklg [1K]
3 years ago
11

( CORRECT ANSWER GETS BRAINLIEST AND FULL RATINGS !!!)

Mathematics
1 answer:
ozzi3 years ago
6 0

Answer:

a . 1/13      

Step-by-step explanation:

You might be interested in
For each set of figures, show how the green colored tiles in the border can be grouped to allow for quick calculation. Each set
Firdavs [7]

We can write,

n = inside triangle size

Label and explain grouping method :

I grouped the covered triangles, each had 3 colored tiles.

That were 3 sets,

                         3 * 3 = 9

Then I noticed the left over colored border tiles were the same amount as the inner triangles minus 1,

So,

The equation is,

                           9 + 3(n-1)

3 because triangles have 3 sides

A mathematical expression to represent grouping strategy :
                          9 + 3(n-1)      or        9 + 3(x-4)

Number of green tiles,

                           = 9 + 3(8-1)

                           = 9 + 21

                           = 30

Let us assume, green colored triangles = 72

So,

We can write,

                       9 + 3(n-1) + (n x n) = 72

                       9 + 3(n-1) + n^{2} = 72

                        n^{2} + 3n + 8 = 72

                        n^{2} + 3n = 66

                        n^{2} + 3n -66 = 0

Therefore,

The mathematical expression = 9 + 3(n-1)

Learn more about event correlation here: brainly.com/question/8599681

#SPJ9

7 0
1 year ago
What is the value of arccos(sin(5pi/4))
murzikaleks [220]

Step-by-step explanation:

arccos(sin(5π/4))

= arccos(sin(-π/4))

= arccos(-√2/2)

= 3π/4.

8 0
3 years ago
Read 2 more answers
Find the slope between the ordered pairs (1,-6) and (-4,11)
sladkih [1.3K]

Answer:

-17/5 is we are finding the slope slope of a line containing points:

(1,-6) and (-4,11).

Step-by-step explanation:

Line them up and subtract vertically, then put 2nd difference over first difference.

So you can do it like route 1 or 2 listed below:

Route 1)

 ( 1 ,   -6)

- (-4 ,  11)

------------

Route 2)

 (-4 ,  11)

- (1   ,  -6)

-------------

Let's do Route 1 first:

( 1  ,  -6)

-(-4 ,  11)

------------

5      -17

So the slope is -17/5.

Route 2:

(-4 , 11)

-( 1   ,-6)

------------

-5     17

So the slope is 17/-5 or -17/5 which is what we got doing it route 1 way.

So it doesn't matter which point you put on top.

You could also use this formula directly which is what we did without really stating it:

\frac{y_2-y_1}{x_2-x_1} or \frac{y_1-y_2}{x_1-x_2}.

So using this formula directly, you could do either:

\frac{11-(-6)}{-4-1} or \frac{-6-11}{1-(-4)}

So first way gives 17/-5 whereas the second way gives -17/5.

You get the same number either way.

7 0
4 years ago
What is the difference between the slope of a horizontal line and a vertical line?​
Fofino [41]

Answer:

.

Step-by-step explanation:

The slope of a line is change in Y / change in X.

The slope of a horizontal line = 0, not undefined.

The slope of a vertical line = undefined.

4 0
3 years ago
Demonstrate that there is approximately 16% probability (P) of finding the ground state harmonic oscillator displaced beyond the
Misha Larkins [42]

Answer:

The probability of finding a particle in a space is proportional to the square of its absolute value.

In quantum mechanics, there are still chances of find a particle in a classically forbidden region.

That is, finding the ground state harmonic oscillator displaced beyond the classical turning points.

Since there is a chance for finding the ground state harmonic oscillator displaced beyond the classical turning points, the probability (P) will have a value and not equal to Zero( I.e 16%).

By normalization, the probability can be added to 1

This phenomenon is tunneling in quantum mechanics.

Step-by-step explanation:

The motion of a classical oscillator is confined to the region where its kinetic energy is nonnegative.

Physically, it means that a classical oscillator can never be found beyond its turning points, and its energy depends only on how far the turning points are from its equilibrium position. The energy of a classical oscillator changes in a continuous way. The lowest energy that a classical oscillator may have is zero, which corresponds to a situation where an object is at rest at its equilibrium position. The zero-energy state of a classical oscillator simply means no oscillations and no motion at all (a classical particle sitting at the bottom of the potential well.

7 0
3 years ago
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