1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Cerrena [4.2K]
3 years ago
15

PLEASE HELP ASAP I always give brainliests!

Mathematics
1 answer:
nlexa [21]3 years ago
7 0

first to find average age add all the ages divide by number of ages 4

5+4=9

9+6=15

15+39=54

54/4=13.5

For standard deviation find the mean/average

13.5

then subtract the mean from each number/age

5-13.5=-8.5

4-13.5=-9.5

6-13.5=-7.5

39-13.5=25.5

then square each number

-8.5^2=-72.25

-9.5^2=-90.25

-7.5^2=-56.25

25.5^2=650.25

then find the mean/average of the new numbers

-72.25+-90.25+-56.25+650.25=431.5

431.5/4=107.85

then take the square root of the new mean/average

\sqrt{ 107.875}\\10.38628903...

You might be interested in
20 points! Please help!!
astraxan [27]
The answe is 41... 65 minus 24
5 0
4 years ago
Read 2 more answers
3.
Sindrei [870]

Step-by-step explanation:

all we need to do is find the surface area, deduct windows and door areas.

that gives us the m² to be covered, which we have to multiply by $12.50 to get the total price.

what is the problem ? there are only trivial multiplications (with a calculator), additions and subtractions.

the house surface area is like for a box, but we don't care about the top and the bottom. only about the walls.

the "box" is 18 m × 14 m × 4 m.

so, the front and the back walls are each

18m × 4 m = 72 m²

both front and back : 2×72 = 144 m²

each side wall is

14m × 4m = 56 m²

both sides : 2×56 = 112 m²

now for the deductions.

each window is

1.5 × 2 = 3 m²

both windows : 2×3 = 6 m²

the door is

1 × 2.5 = 2.5 m²

so, the total area to "side" is

144 + 112 - 6 - 2.5 = 247.5 m²

to side 247.5 m² it costs

247.5 × 12.5 = $3,093.75

7 0
2 years ago
Can you simplyfy 18/33
nekit [7.7K]
6/11 is a simplified version of the fraction and its the most simple you can get. 
5 0
3 years ago
Read 2 more answers
Question 1
xeze [42]

Step-by-step explanation:

Graphs of Exponential Functions

The graph passes through the point (0,1)

The domain is all real numbers.

The range is y>0.

The graph is increasing.

The graph is asymptotic to the x-axis as x approaches negative infinity.

The graph increases without bound as x approaches positive infinity.

The graph is continuous.

6 0
3 years ago
Read 2 more answers
a company has 3 divisions.last year, each division earned a profit of $5×10^5 power what was the total profit the company earned
djverab [1.8K]
3 times 5× 10^5 = 3×5×10^5=15×10^5 = 1.5×10^6
6 0
3 years ago
Read 2 more answers
Other questions:
  • A notebook costs $4.50 plus sales tax. After sales tax, the notebook is $4.86. What is the percent of tax?
    8·1 answer
  • What does this say? Please Help me!
    7·1 answer
  • 1+5657777788887776677777777777]=​
    12·2 answers
  • 3x-4y=-5<br> 5x+8y=-1<br><br> solve by elimination please
    9·1 answer
  • Evaluate expression 20+3c+17d when c=8 and d=2.
    15·1 answer
  • Do the thing<br> nee ASAP answer, will give brainliest
    15·1 answer
  • Which weighs more 2.5 pounds of rocks or 40 ounces of feathers
    9·2 answers
  • A dilation has center (0,0). Find the image of the point B (7/4,-3/4) for the scale factor 1/4.
    13·1 answer
  • I have a friend in need. Her name is Sienna and she has cancer along with co.vid. Please pray for her well being because she rea
    11·1 answer
  • Solve the following equation for y: 35x - 7y = 49, what is the slope?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!