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Katena32 [7]
2 years ago
11

The Science Club has 30 members and needs to elect officers. They will need a President, Vice President, Secretary, Treasurer, a

nd Historian. How many ways can a 5-member committee be formed?
A. 150
B. 3735
C. 142,506
D. 17,100,720
Mathematics
1 answer:
Ludmilka [50]2 years ago
3 0

The number of ways can a 5-member committee be formed will be C. 142,506. This is illustrated through permutations and combination.

<h3>How to calculate the value?</h3>

From the information, the Science Club has 30 members and needs to elect officers. They will need a President, Vice President, Secretary, Treasurer, and Historian.

The number of ways can a 5-member committee be formed will be:

= 30!/(30 - 5)!5!

= 30!/25!5!

= (30 × 29 × 28 × 27 × 26)/(5 × 4 × 3 × 2 × 1)

= 142506

Learn more about permutations on:

brainly.com/question/4658834

#SPJ1

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5 - 2x^2 = -15 solve the question using inverse operations
Butoxors [25]

Answer:

x= √10 and x= -√10

Step-by-step explanation:

first look to isolate the term with the variable on one side

-5 +5 -2x² = -5 -15; subtract 5 from both sides(inverse of addition)

-2x² = -20; divide both sides by -2 (inverse of multiplication)

x² = 10; square root both sides (the inverse of raising to power of 2)

√x² =√10

x =±√10

4 0
3 years ago
Which of the following is the appropriate interpretation for when an event has a probability of 1? Group of answer choices We ar
ira [324]

9514 1404 393

Answer:

  We are absolutely certain that the event will occur

Step-by-step explanation:

An event with probability 1 is certain to occur. There is no chance it will not occur.

We are absolutely certain that the event will occur.

6 0
3 years ago
When sample size increases Group of answer choices
Olenka [21]

Answer:

Option A)

Confidence interval decreases

Step-by-step explanation:

If we increase the sample size, then,

  • The standard error of the interval decrease.
  • If the standard error increase, the margin of error of the interval decrease.
  • If the margin of error decreases, the width of the confidence level decreases, hence, the confidence interval become narrower.

Thus, the correct answer is

Option A)

Confidence interval decreases

3 0
3 years ago
Which point is a solution to the system of equations graphed below?
vlada-n [284]
I would say, "6.5, 5." 
5 0
3 years ago
170+ 35 - 5 = 2s + 25
Len [333]

Answer:

<em>s</em> = 87.5

Step-by-step explanation:

We start with 170 + 35 - 5 = 2<em>s</em> + 25

We want to find the value of <em>s. </em>Since one side of the expression (170 + 35 - 5) isn't simplified yet, that's what we should start with.

Evaluate: 170+ 35 - 5

170 + 35 - 5 = 200

Now our equation is 200 = 2<em>s</em> + 25

Solve using algebraic methods:

Start by subtracting 25 from both sides of the equation to get:

175 = 2<em>s</em>

Then, divide both sides by 2:

87.5 = <em>s</em>

The final answer you get should be <em>s </em>= 87.5

Hope this helps!

5 0
3 years ago
Read 2 more answers
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