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laiz [17]
3 years ago
8

What does it mean when there are variables on top of each other in parentheses in statistics?

Mathematics
1 answer:
Ilya [14]3 years ago
4 0
It's a combination:
\left(  {{n} \atop {k}}\right)\equiv C(n,k)=\dfrac{n!}{(n-k)!k!}
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Which of the following is a non-linear equation?
Lana71 [14]

Answer:

iv ; xy + x/y = 3

Step-by-step explanation:

A non linear equation is one in which there is no product of two different variables or the same variable

What this mean is that we have the highest polynomial power as 1 or we simply have polynomials of degree 1

Looking at the given options, we can see the product xy

What this mean is that the polynomial is of degree 2 and that makes the equation a non linear as we have a polynomial of more than 1 degree

8 0
2 years ago
Without solving, explain how you can tell whether the solution to 0.5x = 10 is less than 1 or greater than 1 ​
NemiM [27]

Greater than 1 because left side is a fraction less than 1 and right side is a number greater than 1.

The left side being a fraction less than 1 could only mean that you have to multiply a number greater than 1 to the other side. And since the other side is a number greater already than 1 then multiplying the left side to the right side must result in a number greater than 1.

6 0
3 years ago
Write 81.9 as a mixed number.
Digiron [165]

Answer:

81 9/10

Step-by-step explanation:

6 0
3 years ago
Use the diagram to find the measure of each angle. Enter the number only.
Pavlova-9 [17]

9514 1404 393

Answer:

  a = 64, b = 90, c = 26, d = 90, e = 26, f = 120, g = 120, h = 60,

  i = 56, j = 124, k = 56

Step-by-step explanation:

Vertical angles are congruent; linear pairs are supplementary; two angles dividing a right angle are complementary. These are the angle relations you need to know to solve this.

__

Working from the top and from the given angles, ...

  h = 60°

  f = g = 180° -h = 120°

  j = 124°

  k = i = 180° -124° = 56°

  a = 64°

  b = d = 90°

  c = e = 90° -64° = 26°

In summary, measures in degrees are ...

  a = 64, b = 90, c = 26, d = 90, e = 26, f = 120, g = 120, h = 60,

  i = 56, j = 124, k = 56

7 0
2 years ago
If a certain number is multiplied by five, the result is the same as twenty-one plus twice the original number. What is the valu
expeople1 [14]
7
7 times 5 = 35
21 + 14 (7*2) = 35
6 0
3 years ago
Read 2 more answers
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