What is the value of 4C9 ?

Mathematics

1 answer:

vekshin12 years ago

7 0

The answer is 0

The formula is

n!/ r!(n-r)!

4!/ 9!(4-9)!

You might be interested in

Here is my house number on Brookview Way. I hope to see you on

Sedbober [7]

Answer:

54318

Step-by-step explanation:

my teacher told me the numbers are 54,3 and 18

3 0

2 years ago

Classify the real number. (Choose all that apply). –9 A.) Rational B.) Whole C.) Irrational D.) Natural E.) Integer

IRISSAK [1]

Whole numbers are the numbers 0, 1, 2, 3, 4 and so on and negative numbers are not considered whole numbers.

natural numbers are called the counting numbers that are the numbers 1, 2, 3, 4, and so on. they are positive numbers and zero is not considered a natural number as you can see.

integers are all the whole numbers and their opposite (negative) but negative numbers are NOT whole or natural numbers. fractions and decimals are not integers.

rational numbers are numbers that include all the integers, plus all fractions, or terminating decimals and repeating decimals.

irrational numbers are an infinite number of digits to the right of the decimal point, without repeating.

so your answer is integer and rational, hope this helped! :)

6 0

3 years ago

You are designing a rectangular garden. the garden will be enclosed by fencing on three sides and by a house on the fourth side.

RUDIKE [14]

Suppose the dimensions of the rectangle is x by y and let the side enclosed by a house be one of the sides measuring x, then the sides that is to be enclosed are two sides measuring y and one side measuring x.

Thus, the length of fencing needed is given by

P = x + 2y

The area of the rectangle is given by xy,

i.e.

$xy = 288 \\ \\ \\ \\ \Rightarrow y= \frac{288}{x}$

Substituting for y into the equation for the length of fencing needed, we have

$P=x+2\left( \frac{288}{x} \right)=x+ \frac{576}{x}$

For the amount of fencing to be minimum, then

$\frac{dP}{dx} =0 \\ \\ \Rightarrow1- \frac{576}{x^2} =0 \\ \\ \Rightarrow \frac{576}{x^2} =1 \\ \\ \Rightarrow x^2=576 \\ \\ \Rightarrow x=\sqrt{576}=24$

Now, recall that

$y= \frac{288}{x} = \frac{288}{24} =12$

Thus, the length of fencing needed is given by

P = x + 2y = 24 + 2(12) = 24 + 24 = 48.

Therefore, 48 feets of fencing is needed to enclose the garden.

8 0

3 years ago

Which equation is in slop-intercept form?

frosja888 [35]

Step-by-step explanation:

Only D, y = 3x + 12 is in slope-intercept form.

6 0

2 years ago

Read 2 more answers

In a rhombus whose side measures 36 and the smaller angle is 32°, find the length of the larger diagonal, to the nearest tenth.

Anvisha [2.4K]

Given side length "a" and angle "A", calculate the diagonals
p = square root [( 2a^2 - 2a^2 cos(A) )]
q = square root [( 2a^2+ 2a^2 cos(A) )]
http://www.calculatorsoup.com/calculators/geometry-plane/rhombus.php

side = 36
cos (32) = 0.84805
p = small diagonal = 19.8457652914 
q = large diagonal = 69.2108777578

3 0

3 years ago