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Sergeeva-Olga [200]
3 years ago
12

Need help on this one last question

Mathematics
1 answer:
Likurg_2 [28]3 years ago
6 0

Answer:

available

Step-by-step explanation:

if its available if available comment

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A fair coin is flipped 10 times. What is the probability that exactly 4 of the 10 flips come up heads
kifflom [539]

105/2^9

Step-by-step explanation:

The probability of getting a head in a single toss

p=12

The probability of not getting a head in a single toss

q=1−12=12

Now, using Binomial theorem of probability,

The probability of getting exactly r=4 heads in total n=10 tosses

=10C4(1/2)4(1/2)10−4

=10×9×8×7/4! 1/2^4 1/2^6

=2^44⋅9⋅35/24(2^10)

=105/2^9

5 0
2 years ago
Read 2 more answers
Can someone help me!?!?
amm1812

It's the first step.4x-x-2+6=6x+16     ##substract 2 rather an add 2

Check it carefully next time.!!

5 0
3 years ago
A train has an average speed of 18 miles per hour. How long will it take to travel 270 miles?
NARA [144]
I believe the answer is 15 because if you divide 270/18 you get 15 <span />
8 0
3 years ago
Read 2 more answers
A seat on a Ferris wheel is level with the center of the wheel. The diameter of the wheel is 210 feet (ft). If the wheel
frutty [35]

Answer:

The change in the height of the seat of the Ferris wheel is a reduction in height of approximately 74.25 feet

Step-by-step explanation:

The given information are;

The position of the seat on the Ferris wheel = The center level of the wheel

The diameter of the Ferris wheel = 210 feet

The angle of rotation of the wheel = 45° counterclockwise

The height of a point on the Ferris wheel is given by the relation;

h = A·cos(b·x + c) + d

With regards to the question, we have;

h = The height of the seat of the Ferris wheel

A = The amplitude = 1/2 × The diameter of the wheel = 210/2 = 105 feet

360/b = The period

c = The phase shift = 90°

d = The mid line = 0

For a rotation of 45° counterclockwise or-45° clockwise, we have;

b·x = 45°, therefore;

h  = 105 × cos(45° + 90°) + 0 = 105 × cos(135°) + 0

h = 105 × cos(135°) ≈ -74.25 feet

Therefore, the height of the seat of the Ferris wheel reduces by 74.246 feet.

6 0
3 years ago
Joaquin also kept track of players and winners for his game during the fair. Based on the results shown in the table, how many w
melamori03 [73]
Joaquin should expect about 51 winners out of 300 players!

I hope this helped! also I love your pfp!!!!!!!
7 0
3 years ago
Read 2 more answers
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