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Schach [20]
4 years ago
15

How do you evaluate 11 c 5

Mathematics
1 answer:
swat324 years ago
6 0
You have 11 items and you need to choose 5 of the 11.
There are 462 ways to choose them.
The formula is :
11! / (5!6!)
n!/(r!(n-r)!)
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The nth term of a sequence is 3n2/2
Anna71 [15]

Question:

The nth term of a sequence is \frac{3n^2}{2} . Find the fifth term of the sequence

Answer:

The 5th term of the sequence is 37.5

Step-by-step explanation:

Given

nth\ term = \frac{3n^2}{2}

Required

Find the 5th term

To find the 5th term, we simply substitute 5 for n in the above expression.

This gives

5th\ term = \frac{3 * 5^2}{2}

5th\ term = \frac{3 * 5 * 5}{2}

5th\ term = \frac{75}{2}

5th\ term = 37.5

<em>Hence, the 5th term of the sequence is 37.5</em>

3 0
3 years ago
PLS HELPPP ITS WORTH 20 points!!!!
DIA [1.3K]

Answer:

Find the value of x in each of the given figures.

Step by step explanation :

a. .. Let the triangle be ABC

we have to find the value of A

so

ATTQ ( According to the question) we have ::

B = 25°

C = 105° + ___ = 180° ( adjacent angles)

C = 75 ° = 180° - 105° ( transfer 105° from LHS to RHS)

The sum of all interior angles of a triangle is 180° .

so, A+B+C = 180°

A+ 25° + 75° = 180°

A+ 100° = 180°

A= 180° - 100°

A = 80°

therefore answer is 80°

b. .. Let the triangle be ABC.

we have to find the value of x

ATTQ , we have

A= 3x+2°

B=2x°

C = 152° + ___ = 180°

C= 180°- 152° = 28°

The sum of all interior angles of triangle is 180°

so, A+B+C = 180°

3x+2° + 2x° + 28° = 180°

first add the variables then numbers

5x° + 30° = 180°

5x° = 180° - 30°

5x ° = 150°

x° = 150° / 5

x = 30°

therefore answer is 30°

...

thank you so much..

8 0
3 years ago
Between which two intervals on the number line is V38?
Alecsey [184]
Need to just answer questions but try a maybe
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BRAINLIEST IF CORRECT
vfiekz [6]
C/20 cups flour in one cake is the term.

Step-by-step instructions: * First, let's go over how to solve the problem: - There are ten students; each produced two chocolate cakes; they all used the same recipe; the total amount of flour used is C cups * Let's put this information into an equation: There are ten pupils, and each of them produced two cakes. The total number of cakes is ten plus two, for a total of twenty cakes
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Alex purchased 29 4x6 prints and 16 5x7 prints from an online printing service and paid $22.89. If 5x7 prints cost $0.84 more th
viktelen [127]

Answer:

23x93x66x33ans is 20000this is and of your qustion

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