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ExtremeBDS [4]
2 years ago
7

On any given day, there is a 52% chance of there being an auto-related accident on a certain stretch of highway. The occurrence

of an accident from one day to the next is independent. (Use Statdisk to compute the values and write the answers below) (a). What is the probability that there will be 4 accidents in the next 9 days
Mathematics
1 answer:
Neporo4naja [7]2 years ago
4 0

Answer:

<h2>See the explanation.</h2>

Step-by-step explanation:

We need to observe total 9 days.First we need to choose any 4 days from the 9 days. From these total 9 days, 4 days can be chosen in ^9C_4 = \frac{9!}{4!\times5!} = \frac{6\times7\times8\times9}{4!} = 126 ways.

The probability of occurring an auto related accident is \frac{52}{100}.

Similarly, the probability of not occurring an accident is \frac{100 - 52}{100} = \frac{48}{100}.

Hence, the required probability is 126\times(\frac{52}{100} )^4(\frac{48}{100} )^5.

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Which of the following equations shows "twice a number is eighteen?"
S_A_V [24]

I don't see the answer choices, but 2 equations you could use to get eighteen would be:

9 × 2 = 18

     OR

9 + 9 = 18

See? Twice a number is eighteen. You can use any of my equations to get eighteen

↑   ↑   ↑ Hope this helps! :D

3 0
3 years ago
For every 5 boys, there are 3 girls. If there are 60 students how many boys are there?
adell [148]

Answer:

not solvable

Step-by-step explanation:

so there is a ratio of 5:3

that equals 8 parts

if you divide 60 by 8 that's 7.5

times 7.5 by 5 and you get 37.5

don't know how u get half a person but that's just how it is

8 0
3 years ago
Find (r-s) (t-s) + (s-r) (s-t) for all numbers r, s, and t. (a) 0 (b) 2 (c) 2rt (d) 2(s-r) (t-s) (e) 2(r-s) (t-s)
lyudmila [28]
Notice that the 2 expressions have 2 common terms.

(r-s) is just (s-r) times (-1)

similarly

(t-s) is just (s-t) times (-1)

this means that :

(r-s) (t-s) + (s-r) (s-t)=-(s-r)[-(s-t)]+(s-r) (s-t)

the 2 minuses in the first multiplication cancel each other so we have:

-(s-r)[-(s-t)]+(s-r) (s-t)=(s-r) (s-t)+(s-r) (s-t)=2(s-r) (s-t)

Answer:

d)<span>2(s-r) (t-s) </span>
3 0
3 years ago
Read 2 more answers
It costs $859.32 to have a school dance (tickets $8)
djverab [1.8K]

A) 859.32/8= 107.415=108 tickets

B) 980.68/8= 122.585=123 tickets
5 0
3 years ago
Read 2 more answers
At which values of x does the function f(x) have a vertical asymptote
Pani-rosa [81]

Answer:

A. 0

E. -3

F. 9

Step-by-step explanation:

You can't divide by 0; it is undefined. So if x cannot equal zero, then anything that turns the denominator to zero is an asymptote. Therefore, the roots of the cubic expression would be excluded, and we get our final answers.

3 0
3 years ago
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