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xeze [42]
3 years ago
6

5+1/2(14b-8)=-6 5+__b-4=-6 7b+__=-6 7b=__ b=__ ANSWERS 7-7-1 1

Mathematics
1 answer:
Lunna [17]3 years ago
3 0

Answer:

7, 1, -7, -1.

Step-by-step explanation:

5+1/2(14b-8) = -6

5 + 7b - 4 = -6

7b + 1 = -6

7b = -7

b = -1

So, your answer will be 7, 1, -7, -1.

Hope this helps!

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Coach Evans recorded the height, in inches of each player on his team. The results are shown.
marysya [2.9K]

Answer:

3

Step-by-step explanation:

Given:

Team heights (inches):

61, 57, 63, 62, 60, 64, 60, 62, 63

To find: IQRs (interquartile ranges) of the heights for the team

Solution:

A quartile divides the number of terms in the data into four more or less equal parts that is quarters.

For a set of data, a number for which 25% of the data is less than that number is known as the first quartile (Q_1)

For a set of data, a number for which 75% of the data is less than that number is known as the third quartile (Q_3)

Terms in arranged in ascending order:

57,60,60,61,62,62,63,63,64

Number of terms = 9

As number of terms is odd, exclude the middle term that is 62.

Q_1 is median of terms 57,60,60,61

Number of terms (n) = 4

Median = \frac{(\frac{n}{2})^{th} +(\frac{n}{2}+1)^{th}  }{2} =\frac{2^{nd}+3^{rd}}{2} =\frac{60+60}{2}=\frac{120}{2}=60

So, Q_1=60

So, 25% of the heights of a team is less than 60 inches

Q_3 is the median of terms 62,63,63,64

Median = \frac{(\frac{n}{2})^{th} +(\frac{n}{2}+1)^{th}  }{2} =\frac{2^{nd}+3^{rd}}{2} =\frac{63+63}{2}=\frac{126}{2}=63

So, Q_3=63

So, 75% of the heights of a team is less than 63 inches

Interquartile range = Q_3-Q_1=63-60=3

The interquartile range is a measure of variability on dividing a data set into quartiles.

The interquartile range is the range of the middle 50% of the terms in the data.

So, 3 is the range of the middle 50% of the heights of the students.

4 0
3 years ago
Which function in vertex form is equivalent to f(x) = x2 + 8 – 16x?
damaskus [11]

Answer:

f(x)= (x+8)^2 + 200

Step-by-step explanation:

-b/2a gives you the x coordinate of the vertex and then plug it in for x to get the y coordinate. Put it in the formula (f()x= (x-h)^2 +k).

H is the x coordinate and K is the y coordinate

6 0
3 years ago
Which ordered pair would fall in the first quadrant of the coordinate plane?
Rasek [7]
It would be (3,10) because it is much bigger then the others
8 0
3 years ago
Read 2 more answers
Fawn ran a 5-kilometer race in 66 minutes. To the nearest hundredth, what was her speed in meters per second?
klio [65]

5 km = 5000 meters

66 minutes = 3960 seconds

Meters per second = 5000/3960 = 1.26

The answer is A.1.26

8 0
3 years ago
leon deposited $30,000 in a bank which paid 2% interest per year. after 1 year, leon withdraw all his money including the intere
Tanzania [10]
I believe that the It is 30,600
5 0
3 years ago
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