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Aneli [31]
3 years ago
13

How do you work out these questions???????????

Mathematics
1 answer:
umka2103 [35]3 years ago
4 0
Divide the first one to 2 rectangles by drawing a line and then find the area of both rectangles, then add them.

The second one is divided in to 2 trapezoids. Find the area of both trapezoids and then add them.
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What makes this a binomial distribution and what is the probability?
kati45 [8]

Answer:

Probability at least one car will get punctured: 0.39347

Step-by-step explanation:

B(10,000 , 0.00005)

P(X ≥ 1) = 1 - P(X = 0)

            = 1 - (1 - 0.00005)^10,000

            = 1 - (0.99995)^10,000

            = 1 - 0.60652...

            = 0.39347 (probability that at least one car will get punctured)

As you can tell P(X ≥ 1) as we have to solve for the probability that at least one car will get punctured. That is of course 1 - [ P(X = 0) ].

3 0
3 years ago
Read 2 more answers
(a+b)²=?ahihihihihihihihihihihihi
aleksandr82 [10.1K]

Answer:

(a+b)²=a²+2ab+b²

Step-by-step explanation:

Hope this helps!!!

7 0
3 years ago
Read 2 more answers
A student in a statistics class asks students in a long lunch line about their opinions about the school cafeteria. The sample t
Paladinen [302]

Answer:

The correct option is;

D. Biased

Step-by-step explanation:

A sampling method in which the members of the sample are not representative of the population, such that some members of the population have a higher or lower probability within the sample which is indicative that not all members of the population are sampled

A biased sample is a non random sample and the can lead to misleading data conclusion

In the question, the sampling of student opinion about the school cafeteria among students who are on the lunch line and so prefer the school cafeteria leaves out the portion of the population that get their lunch from alternative sources.

7 0
3 years ago
What is 5x^2+11x+2 factored
Alina [70]

Answer:

(x+2) (5x)

Step-by-step explanation:

the way I factor is the products of a*c added together equals b. so the products if (5*2) 10 equals 11. so 10 and 1 are the 2 products that add into 11. Now we put that into the equation. 5x^2+10x+1x+2 now take the two haves until you can't factor them any more 5x(x+2) (x+2). now take the repeated factor and outside factors to get (5x) and (x+2)

4 0
3 years ago
What's the answer for these two?<br> y= -2x+9<br> y=4x-3
Klio2033 [76]

Answer:

4.5 and .75 or 9/2 and 3/4

4 0
3 years ago
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