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Talja [164]
3 years ago
13

Just freaking shoot me

Mathematics
2 answers:
Ymorist [56]3 years ago
4 0

Answer:

open circle on -7 going right to 12

idk the first part tho, sorry

storchak [24]3 years ago
3 0

Answer:

DONT BE SO HARD ON YOUR SELF!!!

Step-by-step explanation:

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100 Brainliest up for grabs to person who can answer all of these with no links:
kogti [31]

Using a discrete probability distribution, it is found that:

a) There is a 0.3 = 30% probability that he will mow exactly 2 lawns on a randomly selected day.

b) There is a 0.8 = 80% probability that he will mow at least 1 lawn on a randomly selected day.

c) The expected value is of 1.3 lawns mowed on a randomly selected day.

<h3>What is the discrete probability distribution?</h3>

Researching the problem on the internet, it is found that the distribution for the number of lawns mowed on a randomly selected dayis given by:

  • P(X = 0) = 0.2.
  • P(X = 1) = 0.4.
  • P(X = 2) = 0.3.
  • P(X = 3) = 0.1.

Item a:

P(X = 2) = 0.3, hence, there is a 0.3 = 30% probability that he will mow exactly 2 lawns on a randomly selected day.

Item b:

P(X \geq 1) = 1 - P(X = 0) = 1 - 0.2 = 0.8

There is a 0.8 = 80% probability that he will mow at least 1 lawn on a randomly selected day.

Item c:

The expected value of a discrete distribution is given by the <u>sum of each value multiplied by it's respective probability</u>, hence:

E(X) = 0(0.2) + 1(0.4) + 2(0.3) + 3(0.1) = 1.3.

The expected value is of 1.3 lawns mowed on a randomly selected day.

More can be learned about discrete probability distributions at brainly.com/question/24855677

6 0
2 years ago
Astronomers measure large distance in light years one light year is the distance that light can travel in one year, or approxima
crimeas [40]

Answer:

78,792,000,000,000 miles

Step-by-step explanation:

(5.88 * 10^12) * 13.4 = 78,792,000,000,000

7 0
3 years ago
Read 2 more answers
Find the missing length indicated<br> i will give brainliest to first correct answer
Ierofanga [76]

Answer:

B) I think

Step-by-step explanation:

3 0
3 years ago
What is -2 2/3 divide by -1/2
tamaranim1 [39]

Answer:

16/3

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
(x+ 3/8 ​ ) 2 + y 2 =1<br> what is the radius &amp; units?
Pani-rosa [81]

The radius of the circle of the circle equation (x + 3/8)^2 + y^2 = 1 is 1 unit

<h3>How to determine the radius of the circle?</h3>

The circle equation of the graph is given as:

(x + 3/8)^2 + y^2 = 1

The general equation of a circle is represented using the following formula

(x - a)^2 + (y - b)^2 = r^2

Where the center of the circle is represented by the vertex (a, b) and the radius of the circle is represented by r

By comparing the equations (x - a)^2 + (y - b)^2 = r^2 and (x + 3/8)^2 + y^2 = 1, we have the following comparison

(x - a)^2 = (x + 3/8)^2

(y - b)^2 = y^2

1 = r^2

Rewrite the last equation as follows:

r^2= 1

Take the square root of both sides of the equation

√r^2 = √1

Evaluate the square root of 1

√r^2 = 1

Evaluate the square root of r^2

r = 1

Hence, the radius of the circle of the circle equation (x + 3/8)^2 + y^2 = 1 is 1 unit

Read more about circle equation at:

brainly.com/question/1559324

#SPJ1

8 0
1 year ago
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