All categories

3 years ago

Find the mean of 37.5, 25.5, 30.5, 41.5, 52.5, 28.25, 30.5

Mathematics

2 answers:

Vsevolod [243]3 years ago

5 0

Answer:

35.18

Step-by-step explanation:

Given the above scores .

Mean

= sum of scores/ number of scores

37.5 + 25.5 + 30.5 +41.5 +52.5 + 28.25 + 30.5 /7

246.25/7

35.18

Ilya [14]3 years ago

4 0

Answer:

35.1785714286

Step-by-step explanation:

To find the mean you have to add all numbers. After you have added all numbers, you must divide the sum by the number of how many points you have.

You might be interested in

a surveyor measures the distance to the two landmarks as shown in the diagram what is the distance d. between the landmarks

Inessa [10]

<h3>The distance between two landmarks is 123 meters</h3>

<em><u>Solution:</u></em>

We have to find the distance between two landmarks

<em><u>Use the law of cosines</u></em>

The third side of a triangle can be found when we know two sides and the angle between them

$c^2 = a^2 + b^2 - 2ab\ cos c$

Here, angle between 90 meters and 130 meters is 65 degrees

From figure,

a = 90

b = 130

c = d

Therefore,

$d^2 = 90^2 + 130^2 - 2(90)(130)\ cos 65\\\\d^2 = 8100 + 16900 - 23400\ cos\ 65\\\\d^2 = 25000 - 23400 \times 0.4226\\\\d^2 = 25000 - 9889.267\\\\d^2 = 15110.73\\\\d = 122.92\\\\d \approx 123$

Thus, the distance between two landmarks is 123 meters

8 0

3 years ago

Fencing cost $10 per foot. Frances had a rectangular garden that is 4 feet wide and 5 feet long . How much money will frances ne

Marizza181 [45]

Answer: $180

4ft + 5ft + 4ft + 5ft = 18ft
18 x 10 = 180

6 0

3 years ago

Read 2 more answers

H E L P P P P P P P PP P P P P P P P P P P P PP. PP. P PP P P P P P P P P P P P P P P P P PP P. PP P P P P P P P. P P

Anni [7]

X=69 for the second one

5 0

3 years ago

Read 2 more answers

EASY MATH PLEASE HELP

topjm [15]

Answer:

Step-by-step explanation:

My Apologies if Wrong!

4 0

3 years ago

Read 2 more answers

For y = x^2 + 10x + 24, write the axis of symmetry, the vertex, and whether the

mylen [45]

Answer:

x= - 2

Step-by-step explanation:

hello :

note : the equation of the axis symmetry for the parabola : y =ax²+bx+c

when : a≠ 0 is : x=- b/2a

in this exercice : a=1 and b=10

so : x= -10/2 = -5

7 0

3 years ago

Find the mean of 37.5, 25.5, 30.5, 41.5, 52.5, 28.25, 30.5​

Find the mean of 37.5, 25.5, 30.5, 41.5, 52.5, 28.25, 30.5