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a_sh-v [17]
3 years ago
9

1.) A committee would like to determine four people to office, namely, a president, vice president, secretary and treasurer. In

how many possible ways can four people be elected from this class into these positions?
You are taking a 5 answer multiple choice exam. There is one question you do not know and you must guess. What is the probability of you guessing the correct answer?
Mathematics
1 answer:
Mekhanik [1.2K]3 years ago
7 0
1).  No answer is possible until we know how many people
there are in "this class".

2).  If there are 5 choices, and only one of them is correct,
and you close your eyes and choose one of them completely
at random, then the probability of choosing the correct one is ...

                                 1 / 5  =  20% .
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A beachball has a surface area of about 615.75 square meters. Find the
Genrish500 [490]

Answer: The radius of the ball is 7 meters.

Step-by-step explanation:

Hi, to answer this question we have to apply the next formula:

Surface area of a sphere: 4 π r^2

Replacing with the value given:

615.75 = 4 π r^2

Solving for r (radius):

615.75 /4π= r^2

√(615.75 /4π) =r

r = 6.99 = 7m (rounded)  

The radius of the ball is 7 meters.

Feel free to ask for more if needed or if you did not understand something.  

5 0
3 years ago
Dirk plants 12 seedlings in 8 min. At this rate, how many seedlings could he plant in 70 min?
Zigmanuir [339]
The answer to this question is B. 105
8 0
3 years ago
Last years average ticket price was £22 this year the average ticket price has increased by 5% what is the average price now
Eduardwww [97]

the avrege will be 23.1


8 0
3 years ago
Someone please help with this
alukav5142 [94]

The answer is : 60.0625

Explanation

The mean set is meaning the average

To determine the mean you add all the numbers and then divide by the number data of items

Adding all of them equals =961

Having in total of 16 numbers divide the total will equal=60.0625

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Using the Distance Formula to find the distance between the two points.<br> A (-3,4) B (1,3)
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