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Doss [256]
4 years ago
11

Evaluate a/b for a = 4/5 and b= -9/2 -18/5 18/5 -8/45 -10/9

Mathematics
2 answers:
Ivahew [28]4 years ago
6 0
Hi there!


Your question is a/b

Plug in the values you were given

(4/5)/(-9/2)

Your answer is -8/45

This means your answer is C.


Hope I helped!

Let me know if you need anything else!

~ Zoe
zubka84 [21]4 years ago
6 0

C) The correct answer is -8/45

- Prodixy ☕

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An urn contains 5 are red balls and 6 blue balls. Suppose 5 are randomly selected without replacement. What is the probability t
Viefleur [7K]

Answer:

27.94%

Step-by-step explanation:

The statement tells us that we have 5 red balls and 6 blue balls, that is, there are 11 in total (5 + 6)

So the probability of red balls = 5/11 and blue balls probability = 6/11

Let X be the number of red balls of those 5 selected balls.

 Then X follows a binomial distribution with the following parameters:

n = 5

p = 5/11

q = 6/11

P (X) = nCx * p ^ (x) * q ^ (n -x)

required probability is P (X = 3), replacing:

P (X = 3) = 5C3 * (5/11) ^ (3) * (6/11) ^ (5 -3)

P (X = 3) = 5! / (3! (5-3)!) * 0.02794

P (X = 3) = 10 * 0.02794

P (X = 3) = 0.2794

Which means that the probability is 27.94%

5 0
3 years ago
The drama club sold 65 fewer adult tickets at $5 each than they did student tickets for $3 each. The total value of all the tick
dolphi86 [110]

Answer:

adults ticket sold= 60

student tickets =125

Step-by-step explanation:

So we need to make a system of equations. Lets say the variable a stands for adults tickets and the variable s stands for student tickets. Our first equation is going to be

s-a=65

that is because there are 65 more student tickets than adults.

the second equation is going to be

3s+5a=675

that is because the tickets will add up 675.

Now we have to make sure one of the variable cancels out when we add them together. So we have to multiply the first equation by 5.

5[s-a=65]

3s+5a=675

So then we end up with

5s-5a=325

3s-5a=675

We need to add them together and we end up with.

8s=1000

We need to divide by 8

s then equals 125.

So there are 125 students tickets.

We now plug 125 back into one of the equations. To make things easy lets to the first equation.

s-a=65

125-a=65

move the 125 over

-a=-60

multiply by a negative

a=60

So you have 60 adults tickets

4 0
3 years ago
Select all equations that are equivalent to x2 + 6x= 16.
ch4aika [34]

Answer:

(b) c2+6x+9=16

(e) (x+)2=16

Step-by-step explanation:

3 0
3 years ago
Help plz!!!!!!!!!
SIZIF [17.4K]

Answer:

The first quartile is 61 and the third quartile is 63.

Step-by-step explanation:

From the given dot plot is noticed that

Temperature                  frequency            

   59                                   0

   60                                   2

   61                                    3

   62                                   3

   63                                   4

   64                                   2

   65                                   1

 Total                                 15

It means the data is in the form of

60,60,61,61,61,62,62,62,63,63,63,63,64,64,65

The median of data is middle term. The total number terms is 15. Therefore 7th terms is the median

(60,60,61,61,61,62,62),62,(63,63,63,63,64,64,65)

Now, we have 7 ters before median and 7 terms after median.

First quartile is the middle term of minimum value and median and third quartile is the middle term of maximum value and median.

So, 4th term is first quartile and 12th term is third quartile.

(60,60,61),61,(61,62,62),62,(63,63,63),63,(64,64,65)

Therefore the first quartile is 61 and the third quartile is 63.

5 0
3 years ago
PLZ HELP ME I AM SO SO SO CONFUSED PL COMON YOU GOT TO HELP ME OUT
Musya8 [376]

Answer:

#1 is the first answer then #2 is the first answer as well

Step-by-step explanation:

basically click the first answer for both of them

3 0
3 years ago
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