All categories

3 years ago

WILL MARK BRAINLIEST HELPPP ME

Mathematics

2 answers:

steposvetlana [31]3 years ago

5 0

Answer:

x=47

Step-by-step explanation:

yan [13]3 years ago

4 0

Answer:

x=47

Step-by-step explanation:

use eq they give you

2x-4+2x-4=180

4x - 8 = 180

4x = 188

x = 47

You might be interested in

4.) The time X (minutes) for a lab assistant to prepare the equipment for a certain experiment is believed to have a uniform dis

Jet001 [13]

Answer:

$P(35-2 < X 35+2) = P(33< X< 37)= P(X$

And using the cumulative distribution function we got:

$P(35-2 < X 35+2) = P(33< X< 37)= P(X$

The probability that preparation is within 2 minutes of the mean time is 0.134

Step-by-step explanation:

For this case we define the following random variable X= (minutes) for a lab assistant to prepare the equipment for a certain experiment , and the distribution for X is given by:

$X \sim Unif (a= 20, b =50)$

The cumulative distribution function is given by:

$F(x) = \frac{x-a}{b-a} , a \leq X \leq b$

The expected value is given by:

$E(X) = \frac{a+b}{2} = \frac{20+50}{2}=35$

And we want to find the following probability:

$P(35-2 < X 35+2) = P(33< X< 37)$

And we can find this probability on this way:

$P(35-2 < X 35+2) = P(33< X< 37)= P(X$

And using the cumulative distribution function we got:

$P(35-2 < X 35+2) = P(33< X< 37)= P(X$

The probability that preparation is within 2 minutes of the mean time is 0.134

8 0

3 years ago

Help help help help help

Ne4ueva [31]

It should be option 1

8 0

3 years ago

A group of 10 people is choosing a chairperson and vice-chairperson. They put all 10 people's names into a hat. The first name d

nirvana33 [79]

Answer:

Step-by-step explanation:

A group of 10 people is choosing a chairperson and vice-chairperson. They put all 10 people's names into a hat. The first name drawn becomes chair. The second name drawn becomes vice-chair. How many possible combinations of chair and vice-chair are there?

100

10! (10 factorial)

Youre Welcome! :)

5 0

3 years ago

distance is the number of units between two integers use number line to find the distance between each pair of integers

Alja [10]

Answer:

X=1 units

Y= 5 units

Z=3 units

Step-by-step explanation:

6 0

3 years ago

Write an algebraic expression for the sum of the cube of a number and 5

Dovator [93]

Answer:

Step-by-step explanation:

there's a cubic root...you cube 5 and make 25

6 0

3 years ago