MATHEMATICS MIDDLE SCHOOL

Which measure goes first, 1/2, or 1/4?

Answers

Answer 1

Answer:

Answer:

1/4

Step-by-step explanation:

on a number line it would go 1/4, 2/4 or 1/2, 3/4, 4/4

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Find the distance between the following points: (-1,2) and (3,-2)

Answers

Answer:

5 units

Step-by-step explanation

Graph it out. You graph (-1,2) and (3,-2). Find the distance by seeing how many points are in between (diagnolly n this case)

You and 4 friends go to a concert. in how many different ways can you sit in the assigned seats

Answers

So,

This is permutations.

To find all of the possible choices, you will have the number of seats with the mathematical exclamation mark after that number.

4 + you = 5 people
5! = 120

You and your 4 friends can sit in your seats 120 different ways.

Don't waste your time trying to find all 120 of them though.

X-1+x(x-1)=3(x-1)

Please solve for x

Answers

Factor out x-1.

... (x-1)(1 + x) = 3(x-1)

... (x-1)(x +1 -3) = 0 . . . . subtract the right side

... (x -1)(x -2) = 0 . . . . . . simplify

... x = 1 . . . or . . . x = 2 . . . . use the zero-product rule*

_____

* A product is only zero when one or more of its factors is zero.

x-1+x(x-1)=3(x-1)

x^2-1=3x-3

x^2-3x+2=0

Factor: (x-1)(x-2)=0

Set factors equal to 0:

x-1=0 and x-2=0

x=1 or x=2

1 The number of goals scored last season by a soccer player arc shown in the data set. 12, 15,3, 11,9,4, 10,4,2, 11 What were the median and the mean number of goals scored? A The median was 9.5 goals, and the mean was 8.1. B The median was 9 goals, and the mean was 8.1. C The median was 9.5 goals, and the mean was 9. D The median and the mean were both 9 goals. O2 The number of returns of a particular shirt to store each day is for sale is shown in the box plot. What is the the interquartile range for data? 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 D 28 returns C 26 returns B 18, returns A 17 returns C3 Which question is a statistical question? A How many brothers do you have? have? have? B How many brothers does your father many brothers do United been? D How many United States presidents have there Plz answer all three

Answers

The median is the number in the middle setting the data up from least to greatest.

2, 3, 4, 4, 9, 10, 11, 11, 12, 15.
Median = 9.5

The mean is all the numbers added up and divided by how many there are.

2+ 3 + 4 + 4 + 9 + 10 + 11 + 11 + 12 + 15/10
Mean = 8.1

I'm not sure about the other two.

OK so I can't figure this out please help and I have to do 3 of the same type question so please explain how to do it thank you

Answers

Answer:

I don't believe there is an answer to this.

Step-by-step explanation:

How it would usually go is you find the square root of both sides when it is simplified to this point. However, as -9 is negative, it has no square root.

If -9 were positive, however, the square root would be 3 and the question would look like this:

v = 3

Thus, your answer would be 3.

However, they may have given you a way to do this, so this is only what I think based off the experience I have atm.

Answer:

I'm so sorry if I'm wrong, but would it be -3?

Step-by-step explanation:

I'd say its -3 because you would get v by itself, right?

So you square both to get v = -3

Again, srry of I'm wrong!

Dave drives 15 miles to work the journey takes 20 minutes what is Dave's average speed in miles per hour?