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2 years ago

Help please. time is really hard for me! Thanks

Mathematics

2 answers:

Darya [45]2 years ago

8 0

Answer:

40 minutes

Step-by-step explanation:

47-7 is 40

Korolek [52]2 years ago

8 0

40 mins bye have a nice day

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2x + 9 = 5x + 4 solve for x plsssss

professor190 [17]

Answer:

X= 5/3

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Listed below are the numbers of hurricanes that occurred in each year in a certain region. The data are listed in order by year.

Drupady [299]

Answer:

Range = 13

Variance = 10.22

Standard deviation = 3.20

Since this data is time-series therefore, the measures of variation do not reveal anything about the pattern of hurricanes over time.

Step-by-step explanation:

We are given the number of hurricanes that occurred in each year in a certain region.

8 9 8 7 9 15 5 6 8 4 12 7 8 2

Range:

The range of the data set is found by

Range = Maximum value - minimum value

The maximum value in the data set is 15

The minimum value in the data set is 2

Range = 15 - 2

Range = 13

Variance:

To find the variance, first compute the mean of the data set.

Mean = Sum/n

Mean = (8+9+8+7+9+15+5+6+8+4+12+7+8+2)/14

Mean = 108/14

Mean = 7.714

The variance is given by

σ² = (x - mean)²/(n - 1)

σ² = (8 - 7.714)² + (9 - 7.714)²+ (8 - 7.714)² + (7 - 7.714)² + (9 - 7.714)² + (15 - 7.714)² + (5 - 7.714)² + (6 - 7.714)² + (8 - 7.714)² + (4 - 7.714)² + (12 - 7.714)² + (7 - 7.714)² + (8 - 7.714)² + (2 - 7.714)²/(14 - 1)

σ² = 10.22

Standard deviation:

The standard deviation of the data set is given by

σ² = √σ

σ² = √10.22

σ² = 3.20

Since this data is time-series therefore, the measures of variation do not reveal anything about the pattern of hurricanes over time.

7 0

2 years ago

HELP ME PLEASE?? :( HELP ME

Crazy boy [7]

I really dislike long simplification times 4 questions so I will jsut put the answers on some of them

1. remember that the denomenator cannot equal zero so find what values will and restrict them
the answer is the third one or $\frac{3}{(x+6)(x-1)}$

2. second one
(3x-2)/(5x)

3. what you would do is factor the top and divide factors making ones
answer is the fourth one or $\frac{2(3x^{2}-7)}{2x^{2}+3}$

4. find the LCM of the denoemators
4x and 2
4x=2 times 2 times x
2=2
LCM=4x
answer is the third one or 4x

ANSWERS:
1. third
2. second
3. fourth
4. third

5 0

3 years ago

France had 8,306,000 visitors while Australia had 15,976,000 visitors. How many combined visitors did they have?

erastova [34]

Answer:

24,282,000 visitors (total)

Step-by-step explanation:

Add these two counts together:

8 306 000

15 976 000

------------------

24 282 000 total number of visitors

5 0

3 years ago

Read 2 more answers

I got 12 hours bois lets make this fast :)

Kipish [7]

9,504
31,396.86
8,487.42
7,854

8 0

3 years ago