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
motikmotik
3 years ago
9

I really don't understand this

Mathematics
2 answers:
RoseWind [281]3 years ago
6 0

Answer:

-1

Step-by-step explanation:

The mean is the sum of all values divided by the amount of values.

We take the sum of all the numbers:

-3 + -8 + 12 + -15 + 9

-11 + 12 + -15 + 9

1 + -15 + 9

10 + -15

-5

We then divide the sum by how many number we have (we are given 5 numbers):

-5/5 = -1

Therefore, our mean is equal to -1.

Archy [21]3 years ago
4 0

Answer:

-1

Step-by-step explanation:

-3 + -8 + 12 + -15 + 9 = -5 Now divide it by the amount of numbers given. -5 / 5 = -1

You might be interested in
Suppose an isosceles triangle abc has a=pi/4 and b=c=4. What is the length of a^2?
Zanzabum

The law of cosines states that, if \alpha is the angle between sides b and c,

a^2 = b^2+c^2-2bc\cos(\alpha)

So, plugging our values, we have

a^2 = 16+16-2\cdot 4\cdot 4\cdot\cos\left(\dfrac{\pi}{4}\right)

This is equal to

a^2 = 32-32\cdot\dfrac{\sqrt{2}}{2} = 32-16\sqrt{2}

3 0
2 years ago
Kaitlin has four and two-thirds berry pies. She is going to share it equally among 12 people. How much pies will each person get
Ulleksa [173]

Answer:

7/18

Step-by-step explanation:

4 2/3=14/3

(14/3)/12=14/36

reduces to

7/18

3 0
2 years ago
What's greater then 3/8 or 2/4
iVinArrow [24]
Convert 2/4 to 4/8 and then look at the numerators. since 4 is greater than 3, 2/4 is greater than 3/8
7 0
3 years ago
Read 2 more answers
Helllp please I am stuck
Mashutka [201]

Answer:

Step-by-step explanation:

Add 4 to both sides

13 + 4 = w/-3 - 4 + 4

17 = w/-3     Multiply through by -3

17*-3 = -3*(w/-3)

-51 = w

7 0
3 years ago
3. When Antoine or Adriane is halfway to the top of the Ferris wheel, what is his or her elevation? (Use the
klemol [59]

Answer:  70

Step-by-step explanation:

Antoine's elevation when he is halfway to the top is 70. You cut the diameter (120) in half which gets you 60 and you add the height of the stand holding the wheel (10) which gets you 70.

3 0
3 years ago
Other questions:
  • Nic wants to divide his 1/4 lb of cheese between 8 friends. How much cheese does each friend get?
    14·2 answers
  • Plssssssssssss help and fast
    8·1 answer
  • Determine the range of this function
    13·1 answer
  • Complete the statement to describe the meaning of the point shown in the graph.
    14·2 answers
  • Claire's music playlist contains songs she bought and songs her mother bought. The ratio of her songs to her mother's songs is 3
    11·1 answer
  • Hire purchase<br>how to find deposit in hire purchase ​
    8·1 answer
  • Help pleaseee....&lt;3#3
    8·2 answers
  • Carbon - 14 decays exponentially according to
    9·1 answer
  • Find the measure of the missing angle
    13·1 answer
  • Find the circumference of the circle. Round your answer to two decimal places, if necessary.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!