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3 years ago

What does the symbol for factorial function (n!) mean?

Mathematics

2 answers:

Firlakuza [10]3 years ago

8 0

N! means multiply the number by every number less than n

example 5! means 5 x 4 x 3 x 2 x 1

pashok25 [27]3 years ago

4 0

Answer:

It means to multiply a series of descending natural numbers.

Step-by-step explanation:

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The graph below shows the price of different numbers of beach balls at a store:

adelina 88 [10]

p 5.50b can be used

6 0

3 years ago

What is the slope of the line passing through (-3, 5) and (5, -3)?

skelet666 [1.2K]

Answer:

The line has a slope of -1.

Step-by-step explanation:

To solve for the slope of the line, use the rise over run formula. The rise over run formula is a measure of how much something changes vertically compared to how much it changes in the horizontal direction. The rise over run formula calculates the difference between the two points in the vertical direction (rise) and then divide it by the difference in the horizontal direction (run). The formula looks like $\frac{rise}{run}$ , but in terms of finding a slope, it looks like $\frac{y_{2 }-y_{1} }{x_{2} -x_{1} }$ .

For finding the slope of this line with the points (-3,5) and (5,-3), start by writing down the information given from the question.

$y_{2}=-3$

$y_{1}= 5$

$x_{2}=5$

$x_{1} =-3$

Next, plug in the information given from the question into the formula, and the formula will look like $\frac{-3-(5)}{5-(-3)}$ . Then, simplify the equation, which will look like $\frac{-8}{8}=-1$ . The final answer will be -1.

8 0

3 years ago

Given the system of equations presented here:

Vinvika [58]

The action that creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated is " Multiply the second equation by -4 to get -16x - 4y = -80 " ⇒ answer a

Step-by-step explanation:

To solve a system of equation using the elimination method

Make the coefficient of one variable in the two equations have same values and different sign
Add the two equation to eliminate this variable
Solve the resulting equation to find the other variable
Substitute the value of the other variable in one of the two equations to find the value of the eliminating variable

The system of equation is :

2x + 4y = 14 ⇒ 1st equation

4x + y = 20 ⇒ 2nd equation

You can multiply first equation by -2 to get

-4x - 8y = -28 ⇒ 3rd equation

When you add the second and the third equations x will eliminated

<em>OR</em>

You can multiply second equation by -4 to get

-16x - 4y = -80 ⇒ 3rd equation

When you add the first and the third equations y will eliminated

The action that creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated is " Multiply the second equation by -4 to get -16x - 4y = -80 "

Learn more:

You can learn more about the system of equations in brainly.com/question/2115716

#LearnwithBrainly

7 0

3 years ago

You brought a $5 gift card and 5 stuffed animals. You spent a total of $30. How much did each stuffed animal cost

puteri [66]

Answer:

Step-by-step explanation:

if you buy 5 stuffed animals for $30 then you divide 30 by 5 and get 6

3 0

3 years ago

x + y = 4 2x + 3y = 0 A. x = -6, y = 2 B. x = -1, y = 5 C. x = 11 5 , y = 9 5 D. x = 12, y = -8

BlackZzzverrR [31]

Answer:

D. x = 12, y = -8.

Step-by-step explanation:

x + y = 4......(1)

2x + 3y = 0......(2)

Multiply equation (1) by -2:

-2x - 2y = -8 .....(3)

Add (2) + (3):

y = -8

Substitute y = -8 into equation (2):

2x + 3(-8) = 0

2x - 24 = 0

2x = 24

x = 12.

Check the results in equation (1).

x + y = 4

12 + -8 = 4

They check out OK.

3 0

3 years ago