Ms. tucker travels through two intersections with traffic lights as she drives to the market. the traffic lights operate independently. the probability that both lights will be red when she reaches them is 0.22. the probability that the first light will be red and the second light will not be red is 0.33. what is the probability that the second light will be red when she reaches it?

The probability that the second light will be red when she reaches it is .

Step-by-step explanation:

Given: Ms. tucker travels through two intersections with traffic lights as she drives to the market. the traffic lights operate independently. the probability that both lights will be red when she reaches them is . the probability that the first light will be red and the second light will not be red is .

According to question:

The probability of two independent events occurring one after the another is the product of these probabilities written as .

We have given that the probability of the first being red and the second not being red is .

The probability of the first light being red is .  

And we know that these events are independent, then

Therefore, probability that the second light will be red when she reaches it is .

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The probability that the second light will be red when she reaches it is;

P(R₂) = 0.4

We are given;

Probability that both lights will be red when she reaches them; P(R₁,R₂) = 0.22

Probability that the first light will be red and the second light will not be red;

P(R₁R') = 0.33

     We are told that the traffic lights operate independently which means we are dealing with independent events.

Thus, formula to get the probability that the second light will be red when she reaches it is;

P(R₁) × P(R₂) = P(R₁,R₂)

Where;

P(R₂) is the probability that the second light will be red when she reaches it.

P(R₁) is the probability that the first light will be red when she reaches it = 0.33 + 0.22 = 0.55

Thus, plugging in the relevant values gives;

0.55 × P(R₂) = 0.22

P(R₂) = 0.22/0.55

P(R₂) = 0.4

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step-by-step explanation:

we can use this expression to calculate the energy gain as a particle moves with a field or the energy loss as it moves against it. (note that it is also used to define the electron-volt, a unit of energy equal to that gained by an electron as it falls through a pd of 1 v, i.e. w = 1 ev = 1.6 10-19 c 1 v = 1.6 10-19j).in fact this expression is really nothing more than the statement that potential is the potential energy per unit charge. in this case, v= w/qis simply stating that the change in potential energy(or work done) per unit charge is equal to the change in potential (or potential difference), v.student questions: uniform electric fields2electron beamcathode+5 kvanode0 v

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.