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zysi [14]
4 years ago
7

Which ordered pair represents the y-intercept of the graph of the equation y= -4x - 7

Mathematics
1 answer:
oksian1 [2.3K]4 years ago
7 0

Answer:

(0,-7)

Step-by-step explanation:

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Listed below are the top 10 annual salaries​ (in millions of​ dollars) of TV personalities. Find the​ range, variance, and stand
valentina_108 [34]

Answer:

Step-by-step explanation:

The given data is

42 40 39 31 22 18 15 12 11.7 10.5

Range = 42 - 10.5 = 31.5

Mean = (42 + 40 + 39 + 31 + 22 + 18 + 15 + 12 + 11.7 + 10.5)/10 = 24.12

n = 10

Variance = Summation(x - mean)²/n

Summation(x - mean)² = (42 - 24.12)^2 + (40 - 24.12)^2 + (39 - 24.12)^2 + (31 - 24.12)^2 + (22 - 24.12)^2 + (18 - 24.12)^2 + (15 - 24.12)^2 + (12 - 24.12)^2 + (11.7 - 24.12)^2 + (10.5 - 24.12)^2 = 1452.396

Variance = 1452.396/10 = 145.2396

Standard deviation = √(summation(x - mean)²/n

Standard deviation = √(145.2396

Standard deviation = 12.1

The standard deviation of the sample is not a good estimate of the variation of the salaries of the TV personalities in general because

B. No, because the sample is not representative of the whole population.

3 0
4 years ago
Lilli jogs 1/2 mile in 1/10 an hour.what is lillis rate in miles per hour
Pepsi [2]

Answer:

the answer is five miles per hour

5 0
3 years ago
The table below gives percent of flights that were delayed and on time during good and bad weather. Good weather Bad Weather Del
Pani-rosa [81]
The answer would be: It is 15% more likely to be delayed.
<span>
The table should look like this:
              Good weather Bad Weather
Delayed 7.5%                17.5%
On Time 42.5%             32.5% 

The question is asking whether the probability when "bad weather" and "on time" more likely than "On time". So, you need to find the difference between them. The calculation would be:32.5%- 17.5%= 15%</span>
7 0
3 years ago
Read 2 more answers
What is equivalent to 12(3 2/3)
Maslowich
12 * 11/3 or 4 * 11 what ever way you look at it

3 0
3 years ago
1/2(1/4x - 3/5)=1/4 (2/5+3/4 x)
Sliva [168]

Answer:

Are you asking for a fraction?

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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