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RoseWind [281]
3 years ago
11

What is the expected number of tails when a fair coin is tossed 100 times?

Mathematics
2 answers:
BigorU [14]3 years ago
6 0
The answer to your question is 50
Karo-lina-s [1.5K]3 years ago
3 0

Answer:

50 times

Step-by-step explanation:

Assuming a fair coin (probability of heads = 1/2), the expected number of heads (in the sense of mathematical expectations) is 100*1/2 = 50.

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HELP!! PLEASE!!! THANK YOU!!
Blizzard [7]

Answer:

C. 8x - 3y = 5

Step-by-step explanation:

7 - 3(x - y) = 5x + 2

Standard form: Ax + By = C

7 -3x + 3y = 5x + 2

7 -8x + 3y = 2

-8x + 3y = -5

Divide by -1 to each number

8x - 3y = 5

6 0
3 years ago
Can you resolve this?<br><br> A= Area<br> P= Perimeter<br> AT= Total Area<br><br> plis help D:
Paraphin [41]

Answer:

in steps

Step-by-step explanation:

upper square:  P = 20x² + 8

<u>side: P/4 = 5x² + 2</u>

<u>A = side² = (5x² + 2)² = 25x⁴ + 20x² + 4</u>

Middle equilateral Triangle: A = x² + 4x + 4       base = 2x + 4

A = base x height / 2

(x + 2)² = 2 (x + 2) x height /2

<u>height = x + 2</u>

<u>perimeter = 2 (x + 2) x 3 = 6x + 12</u>

Lower trapezoid: A₁ = 2x² + 24x + 40 = 2 (x² + 12x + 20) = 2 (x + 2) (x + 10)

A₁ = (x + 10)² = 2 (x + 2) (x + 10)

x + 10 = 2x + 4

x = 6

<u>A₂ = (2x + 4) (x + 10) / 2 = (16 x 16) / 2 = 128</u>

A₁ = (6 + 10)² = 256

<u>AT = 256 + 128 = 384</u>

6 0
3 years ago
Is someone smarten than me plz
lilavasa [31]

Answer:

11.70

Step-by-step explanation:

d=√((16-5)^2+(14-10)^2)=11.7046999...

7 0
3 years ago
How would you plot number 10 on a coordinate plane
victus00 [196]
Hey there!

To plot the inequality y≥-6 on the coordinate plane, keep in mind that whenever you have y set equal to a constant, your graph will be a horizontal line. Therefore, your graph would be a solid (not dashed since your sign is greater than or equal to) horizontal line passing through (0,-6). Then you would shade the portion over the line to signify that the values of y must be greater than or equal to -6.

The graph below shows y≥-6:

6 0
3 years ago
Find the first three terms of the sequence with nth term 2n+4​
LiRa [457]

Answer:

To find out the first three terms of 2n + 4 substitute 1 ,2 and 3 into the equation.

2(1)+4=2+4=6

2(2)+4=4+4=8

2(3)+4=6+4=10

As you can see the sequence goes up in 3s 6 ,8, 10 To find out the 9th term you also substitute 9 into the equation so

2(9)+4=18+4=22

Hope this helped!

5 0
3 years ago
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