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inna [77]
4 years ago
7

13. Imagine that you are taking a class and your chances of being asked a question in class are 1% during the first week of clas

s and double each week thereafter (i.e., you would have a 2% chance in Week 2, a 4% chance in Week 3, an 8% chance in Week 4). What is the probability that you will be asked a question in class during Week 7?
Mathematics
1 answer:
liberstina [14]4 years ago
8 0

Answer:  There is probability that he will be asked a question in class during Week 7 is 64%.

Step-by-step explanation:

Since we have given that  

Probability that question in class being asked during Week 1 = 1%  

Probability that question in class being asked during Week 2 = 2%  

Probability that question in class being asked during Week 3 = 4%

and so on.

So, we need to find the probability that question being asked in class during week 7.

Since it forms geometric series:

1%, 2%, 4%, ........

So, we need to find the 7 th term:  

a_n=ar^{n-1}\\\\a_7=ar^{7-1}\\\\a_7=1(2)^6\\\\a_7=64\%

Hence, there is probability that he will be asked a question in class during Week 7 is 64%.

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SpyIntel [72]

Step-by-step explanation:

Number of sides of the given polygon, n =5

Sum of interior angles =( n-2)180°

=( 5 - 2)180°

= 3*180°

= 540°

Missing angle, x = 540°- (100°+105°+110°+145°)

= 540°- 460°

= 80°

4 0
3 years ago
96,470,000 scientific notation.
Cloud [144]

You're moving the decimal 7 places to the left so the answer is 9.647 x 10^7

8 0
3 years ago
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The key of a basketball court is made up of a rectangle and one semicircle. The length of the rectangle is 15 feet and the width
Gala2k [10]

Answer:

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Step-by-step explanation:

I found this because the area is length × width so that would be

10 × 15 = 150

or

L × W = A

3 0
3 years ago
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Zigmanuir [339]

Answer: B, $4.41 per shirt

Step-by-step explanation:

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6 0
3 years ago
Why are all of you getting answers from students, you know you guys are cheating
jeyben [28]

Answer:

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Step-by-step explanation:

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