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Keith_Richards [23]
3 years ago
5

Please helpppp meeeee​

Mathematics
2 answers:
Lilit [14]3 years ago
8 0

Answer:

c.

Step-by-step explanation:

aalyn [17]3 years ago
7 0

Answer:

Step-by-step explanation: d I think

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The means and mean absolute deviations of the individual times of members on two 4 times 400 meter relay track teams are shown i
Yakvenalex [24]

The correct answer is option C which is the ratio of the difference in the means of the two teams to the mean absolute deviation of Team B will be 0.25.

<h3>What is mean?</h3>

Mean is defined as the ratio of the sum of the number of the data sets to the total number of the data.

The difference between the mean times is about 16 times the mean absolute deviation of the data set.

59.32 - 59.1 = 0.22

2.4 - 1.5 = 0.9

0.22 / 0.9 = 0.25

Therefore the correct answer is option C which is the ratio of the difference in the means of the two teams to the mean absolute deviation of Team B will be 0.25.

To know more about mean follow

brainly.com/question/968894

#SPJ1

7 0
1 year ago
Trina has two brothers. one brother is 7 years older than trina and the other brother is 7 years younger than trina. the product
AlladinOne [14]
(a) 95 = (x+7)*(x-7)

(b) 95 = (x+7)*(x-7) 
Expand the brackets:
95 = x² -7x + 7x -49 = x² - 49
Subtract x² from both sides:
95-x² = -49
Subtract 95 from both sides:
-x²=-49-95 
-x²= -144
Divide both sides by -1 to get rid of the negative numbers:
-x²/-1=-144/-1
x²=144
Take the square root of 144:
x = ± squareroot of 144
x = 12 or -12
x = 12 because you cannot have a negative age so Trina is 12 years old.
     
7 0
3 years ago
Please help ASAP!!! <br><br> What is the sum of this series?
Katarina [22]

Answer:

45

Step-by-step explanation:

Since this is only three terms

Find the three terms and add

j=1   3(1)^2+1 = 3+1 =4

j=2   3(2)^2+1 = 3(4)+1 =13

j=3   3(9)^2+1 = 27+1 =28

The sum is 4+13+28 =45

6 0
3 years ago
Como divido numeros radicales?​
worty [1.4K]

Do you have a specific question or like nd question example with numbers

¿Tiene una pregunta específica o como ejemplo de pregunta con números?

4 0
3 years ago
When shooting free throws, David is successful 7 out of every 10 shots.if he attempts 100 free throws ,about how many times will
ira [324]
100 free throws* (7 goals/ 10 free throws)= 70 goals.

If David attempts 100 free throws, he will be successful about 70 times~
7 0
3 years ago
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