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3 years ago

9

Kevin installed a certain brand of automatic garage door opener that utilizes a transmitter control with five independent switc

hes, each one on or off. The receiver (wired to the door) must be set with the same pattern as the transmitter. If one of Kevin's neighbors also has this same brand of opener, and both of them set the switches randomly, what is the probability that they will use the same setting?

1 answer:

aleksandrvk [35]3 years ago

4 0

Answer:

0.03125

Step-by-step explanation:

Number of Combinations possible with the Transmitters = 2*2*2*2*2 = 32

Probability that they will use the same settings = 1 - Probability of them using different settings.

= 1 - 32*31/(32^2)

=1 - 992/1024

= 1 - 0.96875

= 0.03125

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Question:

Solve each calculation. Be sure to report your answer with the correct number of significant figures.

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Step-by-step explanation:

1. 5.61000 dg × 1.1010 dg

We start by representing each digit using scientific notation

$5.61000 = 561000 * 10^{-5}$

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2.

12.0 m ÷ 3.1415 m

Using proper notation

12.0 m ÷ 3.1415 m = $\frac{12}{3.1415}$

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