All categories

3 years ago

What is the mean between the numbers 3,19,21,6.8,9.3,21.7,2.9

Mathematics

1 answer:

e-lub [12.9K]3 years ago

3 0

Answer:

About 11.96

Step-by-step explanation:

The mean of a data set is basically the average.

To find the average, add up all of the data values and then divide by the amount of numbers there are.

First, add the numbers.

3 + 19 + 21 + 6.8 + 9.3 + 21.7 + 2.9 = 83.7

There are 7 numbers in this data set so divide 83.7 by 7

83.7/7 = 11.95714285714286

Round this number to the nearest hundreth, to get 11.96

So, the mean of this data set is 11.96

I hope this helps!

You might be interested in

Help 15 points brainliest to whoever is right (ONLY IF YOU'RE RIGHT)

ladessa [460]

Answer:

Step-by-step explanation:

Absolute value inside the brackets will always be positive*

1. 7

2.15

3.0

4. -5

5.-3

6.3

7.17

8.5

9.-101

10.0

11.16

12.1

Hope this helped!

8 0

3 years ago

Read 2 more answers

Use the the factor theorem to determine wether the first polynomial is a factor of the second. X-3; 2x^2-4x+30

Firdavs [7]

Given the polynomial function

$P(x)=2 x^{2} -4x+30$

If (x-3) is a factor of P(x), then

$P(x)=2 x^{2} -4x+30=(x-3)*Q(x)$ , for some polynomial Q of 1st degree,

Then according to the factor theorem P(3)=0, because P(3)=(3-3)Q(x)=0*Q(3)=0.

Check

$P(3)=2 (3)^{2} -4(3)+30=18-12+30=36$ ≠0

we see that P(3) is not 0, so (x-3) is not a factor of P(x).

Answer: no

6 0

3 years ago

Identify the terms in the following: a^2 + 2 +7b Answer:

nikklg [1K]

Answer: -1

Step-by-step explanation:

5 0

3 years ago

You and your friend race on a trail that is 10 miles long. In each situation, does your friend pass you before the end of the tr

Sliva [168]

For the first example given the answer would be No. you have a 4 mile head start. at the 4 mile line, your friend starts at 8 miles an hour and you start running at 6 miles an hour. basic addition should give the answer. In one hour time, you wouldve ran 6 miles plus the 4 you had as a head start, giving you the 10 miles you needed to reach the finish line. He on the other hand, Biked 8 miles in an hour time. By that time, you had just reached the finish line.

So the answer is no for the first example

For the second example the maths get bit harder. You start at the 5 mile point and you friend starts at the beginning point. You only need 5 miles to win, and your friend needs double (its actually more than double, because if it was perfectly doubled, you would tie the race. Your pace just has to be a bit more than half of his speed. his speed is 17mph. yours, by logic, needs to be even a tad bit more than 8.5mph. You need to have a faster speed than 8.5mph (8.51mph works perfectly) and you win by a hair. But when we se your example, you're only going at 7mph. A whole mile and a half behind pace. Sadly, he passes you short before winning.

The second example is YES he does pass you before the end of the trail.

Hope this helped. I spent around 20 minutes writing this answer, and a 5 star, like and noter as the "BRAINLIEST ANSWER" would be very much apreciated! Have a good day!!

7 0

4 years ago

50 POINTS, ANSWER ASAP!!

Zanzabum

Answer:36hrs

Step-by-step explanation:

300*36/5 that you have the time of eating in mins

divide it by 60 then you have hours

7 0

3 years ago

Read 2 more answers