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alukav5142 [94]
3 years ago
5

Combinatorics

Mathematics
1 answer:
kompoz [17]3 years ago
6 0

Answer:

235989936000

Step-by-step explanation:

To form 8 letter words from 30 letters

Using permutation :

nPr = n! ÷ (n-r)!

30P8 = 30! ÷ (30-8)!

30P8 = 30! ÷ 22!

30P8 = (30*29*28*27*26*25*24*23)

30P8 = 235989936000 words

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How to simplify ( 2/4)^2
Otrada [13]

Answer:

2/4x2/4=0.25  or 1/4

Step-by-step explanation:

4 0
3 years ago
Help please? And show work?
In-s [12.5K]
Answer the answer is 25




Explanation:
6 0
3 years ago
Question 7 of 10
astra-53 [7]

The correct answer is option D which is 0.798

The complete question is given below:-

For an exponential regression equation in the form y=ab^x which of the following values of b will cause y to get smaller as x gets larger?

a.) 1.526

b.) 1.798

c.) 2.526

d.) 0.798

<h3>What is an equation?</h3>

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

Since we know that an exponential function is in the form:y= ab.^x where,

a= Initial value,

b = For growth b is in form (1+r), where r is the rate in decimal form.

b = For decay or regression b is less than 1 and in form (1-r), where r is the rate in decimal form.

Upon looking at our given choices we can see that options a, b and c are in form 1+r, while the choice provided in option d is less than 1 and in form 1-r, therefore, option d is the correct choice.

Therefore the correct answer is option D which is 0.798

To know more about equations follow

brainly.com/question/2972832

#SPJ1

8 0
3 years ago
Find m&lt;1<br> A: 69<br> B: 71<br> C: 86<br> D: 111
Studentka2010 [4]
The correct answer is:  [A]:  "69° <span>" .
</span>______________________________________________________
     m∠1 = 69° .
______________________________________________________
Explanation:
_____________________________________________________

180 - (39 + 30) = 180 - 69 = 111.  This is the measurement of the third angle in the triangle.  Note that all angles in a triangle add up to 180° .  All triangles have 3 (three) sides and 3 (three) angles.

To find m∠1 :
_____________________________________________________
The only single angle that exists that is supplementary to ∠1 is 69.

So:   m∠1 = 180 - 111 = 69 .  (Note:  since all angles on a straight line are supplementary angles;  and supplementary angles add up to 180° .
_______________________________________________________
The answer is:  69° .

      m∠1 = 69° .
_______________________________________________________






8 0
4 years ago
Mr. Crawford is ordering pizzas and breadsticks for a school pizza party and has a budget of $81, but no more. An order of bread
kari74 [83]

Answer:

7x+13y=$81

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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