The answer is A becuase I had to his I’m sure
Answer:
First option: (Substitute)
2x+3 (x+1.5) = 12
Answer:
4560
Step-by-step explanation:
Well, first we need to understand how different time formats (for lack of a better word) are related in terms of seconds.
1 minute has 60 seconds
I hour has 3600 seconds
1 day has 86400 seconds
1 week has 604800 seconds
Now, with this information at hand, you can find out how many seconds are in X minutes or X days or X months or a year (and so on).
As for your question, we know that one minute has 60 seconds therefore 76 minutes will have (76x60) seconds
Using a discrete probability distribution, it is found that:
a) There is a 0.3 = 30% probability that he will mow exactly 2 lawns on a randomly selected day.
b) There is a 0.8 = 80% probability that he will mow at least 1 lawn on a randomly selected day.
c) The expected value is of 1.3 lawns mowed on a randomly selected day.
<h3>What is the discrete probability distribution?</h3>
Researching the problem on the internet, it is found that the distribution for the number of lawns mowed on a randomly selected dayis given by:
Item a:
P(X = 2) = 0.3, hence, there is a 0.3 = 30% probability that he will mow exactly 2 lawns on a randomly selected day.
Item b:

There is a 0.8 = 80% probability that he will mow at least 1 lawn on a randomly selected day.
Item c:
The expected value of a discrete distribution is given by the <u>sum of each value multiplied by it's respective probability</u>, hence:
E(X) = 0(0.2) + 1(0.4) + 2(0.3) + 3(0.1) = 1.3.
The expected value is of 1.3 lawns mowed on a randomly selected day.
More can be learned about discrete probability distributions at brainly.com/question/24855677