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NISA [10]
2 years ago
9

Help due soon!!!! please

Mathematics
1 answer:
irga5000 [103]2 years ago
7 0

1 is 12/-30

not yet simplified

2 is A

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A driver has three ways to get from one city to another. There is an 80 % chance of encountering atraffic jam given he is on rou
lukranit [14]

Answer:

The probability is 0.64

Step-by-step explanation:

What we want to calculate here is conditional probability.

Let P(A )= Probability of using route A = 50% = 0.5

Let P( B )= probability of using route B = 25% = 0.25

Let P (C )= probability of using route C = 25% = 0.25

Let T be the probability that he will be in a traffic Jam

The probability that he will be in a traffic Jam if he uses route A = 80%

Mathematically this is written as P( T | A) which is read as probability of T given A

so P( T | A) = 0.8

Same way for B and C which can be written as follows;

P( T | B) = 60% = 0.6

P( T | C) = 30% = 0.3

Now, what do we want to calculate?

He is in a traffic Jam, and we want to find the probability that he used route A. This means we want to find P(A) given T which can be written mathematically as P ( A | T)

We can find this using the other parameters and especially the equation below;

P ( A | T) = P(A) • P( T| A) / {P(A) • P ( T | A) + P(B)• P(T| B) + P(C) • P(T|C)

P( A | T) = (0.5 * 0.8)/ ( 0.5)(0.8) + (0.25)(0.6) + (0.25)(3) = 0.4/(0.4 + 0.75 + 0.075) = 0.4/0.625 = 0.64

4 0
3 years ago
A flower surrounds the base of a tree. It is in close by stones to form a circle that measures 21.98 feet around. What is the ra
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(3.14)(21.98)(21.98)

-------------------------------

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4 0
3 years ago
14x=x^2-15<br><br> find the value of x
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Answer: x=-1, 15

Step-by-step explanation:

x^2 -14x-15=0\\\\(x-15)(x+1)=0\\\\x=-1, 15

5 0
2 years ago
Determine whether the following statement is true or false. Then, use complete sentences to explain your answer. If you wish, yo
chubhunter [2.5K]

Answer:

False

Step-by-step explanation:

An acute angle can be scalene

Eg - 2 angles of 20 degrees , and 1 angle of 50 degre

HOPE THIS WILL HELP YOU

8 0
3 years ago
Markus receives the same amount of money from his grandfather
Ber [7]
5 x 1 = 5
5 x 2 = 10
5 x 3 = 15

5 x 7 = 35
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