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AleksandrR [38]
3 years ago
9

HELP ME OUT PLEASE!!​

Mathematics
2 answers:
jasenka [17]3 years ago
7 0

Answer:

y=5x+3

Step-by-step explanation:

I learned it in school :)

LiRa [457]3 years ago
5 0

Step-by-step explanation:

a two digit number the product of the digit is 15.when the two digit are Interchanged the value of the original number exceeds the value of the new number by 18 find the original number

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21 ten thousands + 18 ones + 60 hundreds
Vinvika [58]
21,618.........................
3 0
3 years ago
Read 2 more answers
A college student is taking two courses. The probability she passes the first course is 0.73. The probability she passes the sec
zhenek [66]

Answer:

b) No, it's not independent.

c) 0.02

d) 0.59

e) 0.57

f) 0.5616

Step-by-step explanation:

To answer this problem, a Venn diagram should be useful. The diagram with the information of Event 1 and Event 2 is shown below (I already added the information for the intersection but we're going to see how to get that information in the b) part of the problem)

Let's call A the event that she passes the first course, then P(A)=.73

Let's call B the event that she passes the second course, then P(B)=.66

Then P(A∪B) is the probability that she passes the first or the second course (at least one of them) is the given probability. P(A∪B)=.98

b) Is the event she passes one course independent of the event that she passes the other course?

Two events are independent when P(A∩B) = P(A) * P(B)

So far, we don't know P(A∩B), but we do know that for all events, the next formula is true:

P(A∪B) = P(A) + P(B) - P(A∩B)

We are going to solve for P (A∩B)

.98 = .73 + .66 - P(A∩B)

P(A∩B) =.73 + .66 - .98

P(A∩B) = .41

Now we will see if the formula for independent events is true

P(A∩B) = P(A) x P(B)

.41 = .73 x .66

.41 ≠.4818

Therefore, these two events are not independent.

c) The probability she does not pass either course, is 1 - the probability that she passes either one of the courses (P(A∪B) = .98)

1 - P(A∪B) = 1 - .98 = .02

d) The probability she doesn't pass both courses is 1 - the probability that she passes both of the courses P(A∩B)

1 - P(A∩B) = 1 -.41 = .59

e) The probability she passes exactly one course would be the probability that she passes either course minus the probability that she passes both courses.

P(A∪B) - P(A∩B) = .98 - .41 = .57

f) Given that she passes the first course, the probability she passes the second would be a conditional probability P(B|A)

P(B|A) = P(A∩B) / P(A)

P(B|A) = .41 / .73 = .5616

4 0
3 years ago
A 10-foot board is cut into two pieces. If one piece is x feet long, express the other length in terms of x
OleMash [197]

Answer:

10-x ft long

Step-by-step explanation:

If it starts out 10ft long, and xft is taken away, then the remaining board would be 10-x ft long.

In terms of x, I believe it would just be 10-x ft long

7 0
3 years ago
How to simplify 7 8/45
steposvetlana [31]

Answer: Answer

Step-by-step explanation: What do you mean by simplify?

8 0
3 years ago
Z squared divided by z​
Rufina [12.5K]

Answer:

z^2/z=z

Step-by-step explanation:

3 0
3 years ago
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