The chance that any given bulb is on is equal to 1/2. The chance that all twenty bulbs are on at the same time is $(\frac{1}{2}) ^{20} = \frac{1^{20}}{2^{20}} = \frac{1}{1048576}$

8 0

2 years ago

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How old are the property

cricket20 [7]

You didn't enter a valid question.

7 0

3 years ago

If cosΦ = 5/13<br><br>what is, sin Φ/sin Φ + cos Φ<br>

alexandr402 [8]

Answer:

sin Φ/(sin Φ + cos Φ) = 12/17

Step-by-step explanation:

sin Φ = 12/13

then sin Φ + cos Φ = 12/13 + 5/13

= 17/13

So , sin Φ/(sin Φ + cos Φ) = 12/13 ÷ 17/13

= 12/13 × 13/17

= 12/17

7 0

3 years ago

What is 47/50 as a percent

VMariaS [17]

94%

47/50 × 100 = 47 ×2 = 94 %

5 0

2 years ago

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