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Shkiper50 [21]
3 years ago
6

Simplify the equation 28 - 6n + 7(2n -8)-3n

Mathematics
2 answers:
Flauer [41]3 years ago
6 0

Answer:

5n-28

Step-by-step explanation:

28-6n+7(2n-8)-3n

28-6n+14n-56-3n

28+8n-56-3n

28-56+8n-3n

-28+5n

5n-28

BaLLatris [955]3 years ago
4 0
Answer: 5n - 28

first, distribute 7 to (2n-8), which would be 14n - 56

rewrite to have all common terms next to each other, which would be:

-6n + 14n - 3n + 28 - 56

combine all like terms.

5n - 28
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The population of a city increases by 3% per year. If this year's population is 298,0 what will next year's population be, to th
SashulF [63]

Answer:

5 Probability

5.1 Probabilities

Probabilities are used to describe how likely or unlikely it is that something will happen.

Weather forecasters often talk about how likely it is to rain, or perhaps snow, in particular

parts of the country.

Worked Example 1

(a) When you roll a dice, which number are you most likely to get?

(b) If you rolled a dice 600 times how my sixes would you expect to get?

(c) Would you expect to get the same number of ones?

Solution

(a) You are equally likely to get any of the six numbers.

(b) You would expect to get a six in about 1

6

of the throws, so 100 sixes.

(c) Yes, in fact you would expect to get about 100 of each number.

Worked Example 2

Use one of the following to describe each one of the statements (a) to (d).

Certain

Very likely

Likely

Unlikely

Very unlikely

Impossible

(a) It will snow tomorrow.

(b) It will rain tomorrow.

(c) You win a car in a competition tomorrow.

(d) You are late for school tomorrow.

Solution

(a) Very unlikely for most places in Britain, especially in summer.

(b) Likely or Very likely in Britain in winter.

(c) Very unlikely if you have entered the competition. Impossible if you have not

entered the competition.

(d) Very unlikely, unless the school bus breaks down.

6 0
3 years ago
List the smallest three values in the set below. {x | x ∈ E and x < 30}
Sauron [17]

Answer:

Step-by-step explanation:

Notation

We need some notation to make talking about sets easier. Consider,

A

=

{

1

,

2

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3

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3 0
3 years ago
I don’t understand please help
Nesterboy [21]

Answer:guess

Step-by-step explanation:

5 0
3 years ago
Given that the points (-1,6). (3,6), (3, 1), and (-1, 1) are vertices of a rectangle, how much shorter is the width than the len
Ksju [112]
Since the given coordinates are already in order,
then and two consecutive distances between the coordinates will give length and breadth,

Using distance formula,
\sqrt{ {( - 1 - 3)}^{2}  +  {(6 - 6)}^{2} }  \\  =  \sqrt{ { (- 4)}^{2} }  \\  =  \sqrt{16 }  \\  = 4
(we'll not consider the negative value since distances can't be negative)

Applying this again on 2nd and 3rd coordinates,
\sqrt{ {(3 - 3)}^{2} +  {(6 - 1)}^{2}  }  \\  =  \sqrt{ {5}^{2} }  \\  = 5
(we'll not consider the negative value since distances can't be negative)

Since length's always gotta be greater than bredth
therefore,
the difference will be 5-4= 1 units


Hence width is 1 unit shorter than length.



Note: Unit used is "unit/s"
6 0
4 years ago
Which relationships describe angles 1 and 2? Select each correct answer.
VashaNatasha [74]

Answer:

D. Adjacent angles and B supplementary

Step-by-step explanation:

This is an adjacent and supplementary angle

Option <em><u>D</u></em><em><u>,</u></em><em><u> </u></em><em><u>B</u></em>

6 0
3 years ago
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