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Oksana_A [137]
3 years ago
7

Point e is located at -5,2 point m is the reflection of point e what is the distance between e and m

Mathematics
1 answer:
nataly862011 [7]3 years ago
4 0

Answer:

the distance is 10

Step-by-step explanation:

-5,2 to 0,0 is 5

and the refection of -5,2 is 5,2

5,2 to 0,0. is also 5

5+5=10

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Van guessed on all 8 questions of a multiple-choice quiz. Each question has 4 answer choices. What is the probability that he go
aleksandr82 [10.1K]

Answer:

0.267

Step-by-step explanation:

This can be solved using the binomial probability formula which is:

P(success)=nCk*p^{k}(1-p)^{n-k}

Where

n is total number of trials (here, the total number of questions is 8, so n = 8)

k is the number of attempts we are looking for (here, we want to find probability of 1 question correct, so k = 1)

p is the probability of success (here, success is getting a questions right. Since there are 4 choices and 1 is right, probability of right = 1/4)

<em>Plugging all the info into the formula we get:</em>

<em>P(success)=nCk*p^{k}(1-p)^{n-k}\\P(1QuestionRight)=8C1*(\frac{1}{4})^{1}(1-\frac{1}{4})^{8-1}\\P(1QuestionRight)=\frac{8!}{(8-1)!*1!}(\frac{1}{4})(\frac{3}{4})^7\\P(1QuestionRight)=\frac{8!}{7!*1!}(\frac{1}{4})(\frac{3}{4})^7\\P(1QuestionRight)=8(\frac{1}{4})(\frac{3}{4})^7\\=0.267</em>

<em />

<em>Second choice is right.</em>

5 0
4 years ago
Mrs.Conley can type 3 pages in one hour. How many hours will it take her to type a 123 page paper
yulyashka [42]

123/3= 41

it will take her 41 hours

6 0
4 years ago
A jar of marbles has 3 blue marbles,
Makovka662 [10]

Answer:

50/50

Step-by-step explanation:

the other person said it and it makes sense smh

6 0
3 years ago
25 POINTS HOW MUCH I NEED HELP PLEASE IM BEGGINGGG
Ghella [55]

Answer:

<h2>x = -3</h2>

Step-by-step explanation:

It's a vertical line. Regardless of what point you go to on the line, it always has a value of -3 because it is going vertically (up and down) at -3.

Therefore the equation of a line is x = -3

8 0
4 years ago
Put the fracrions on a number line: 1/2 1/4 1/5 1/3
madreJ [45]

Answer: The number line is attached.

1. You have the following fractions given in the problem above:

\frac{1}{2},\frac{1}{4},\frac{1}{5},\frac{1}{3}

2. You can write them in decimal form by dividing the numerator and the denominator. Keeping this on mind, you have:

\frac{1}{2}=0.5

\frac{1}{4}=0.25

\frac{1}{5}=0.2

\frac{1}{3}=0.33

3. Now, you can put these positive numbers in the number line, as you can see in the figure attached.

8 0
3 years ago
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