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
Nonamiya [84]
2 years ago
8

If correct Brainliest

Mathematics
2 answers:
ElenaW [278]2 years ago
8 0

Answer:

a

Step-by-step explanation:

crimeas [40]2 years ago
8 0

Answer:B

Step-by-step explanation:

You might be interested in
Christina collected information about the ages of the players on her softball team. The ages were 10, 12, 14, 13, 12, 11, 13, 12
BARSIC [14]

We are told that Christina collected information about the ages of the players on her softball team. The ages were 10, 12, 14, 13, 12, 11, 13, 12, 11, 12, 12, and 13. Christina wants to describe the players’ ages in an article for the school newspaper.

Since we know that range of a data is difference between the highest and lowest values of a data set. Range of our data set will be 4 (14-10). A group of different ages could have same range as Christina's data set. So range will be not a good option.

A measure of central tendencies will be better option to represent information about ages of softball team players. Mean will give the average age of softball players.

\text{Mean age of players}=\frac{10+11+11+12+12+12+12+12+13+13+13+14}{12}

\text{Mean age of players}=\frac{145}{12}=12.0833

Let us find median of data.

10,11,11,12,12,12,12,12,13,13,13,14        

\text{Median age of softball players}=\frac{12+12}{2}

\text{Median age of softball players}=\frac{24}{2}=12

We can see that average of our data is 12 years.    

Therefore, a measure of central tendency will be better choice to describe ages of softball players.      

7 0
3 years ago
5. 3x + 5y + 5z =1<br> x - 2y = 5<br> 2x + 4y = 11
lilavasa [31]

Answer:

see explanation

Step-by-step explanation:

Given the 3 equations

3x + 5y + 5z = 1 → (1)

x - 2y = 5 → (2)

2x + 4y = 11 → (3)

Use (2) and (3) to solve for x and y

Multiply (2) by 2

2x - 4y = 10 → (4)

Add (3) and (4) term by term

4x = 21 ( divide both sides by 4 )

x = \frac{21}{4\\}

Substitute this value of x into (3)

2 × \frac{21}{4\\} + 4y = 11

\frac{21}{2\\} + 4y = 11 ( subtract \frac{21}{2\\} from both sides )

4y = \frac{1}{2} ( divide both sides by 4 )

y = \frac{1}{8\\}

Substitute the values of x and y into (1) and solve for z

3 × \frac{21}{4\\} + 5 × \frac{1}{8\\} + 5z = 1

\frac{63}{4} + \frac{5}{8} + 5z = 1

\frac{131}{8} + 5z = 1 ( subtract \frac{131}{8} from both sides )

5z = - \frac{123}{8} ( divide both sides by 5 )

z = - \frac{123}{40}

Solution is

x = \frac{21}{4\\}, y = \frac{1}{8\\}, z = - \frac{123}{40}

3 0
3 years ago
Give the rule for the translation if the coordinates of the preimage are A(2,-4) B(5,-4) C(5,-2) D(4,-2) E(4,-1) F(3,-1) G(3,-2)
trasher [3.6K]

Answer:

  (x, y) ⇒ (x -7, y)

Step-by-step explanation:

The y-coordinates are unchanged. Each x-coordinate of the image is 7 units less than the corresponding pre-image coordinate. As a rule, this is ...

  (x, y) ⇒ (x -7, y)

6 0
3 years ago
Read 2 more answers
Why do scientists use the international system of units (SI)
k0ka [10]
So it can be known anywhere. So we use all of the same measurements
7 0
3 years ago
Read 2 more answers
A fish is 80 below sea level. If it ascends 25 feet, what is its new position
Elena-2011 [213]

Answer:

THEN ITS POSITION FROM SEA LEVEL=80-25

=55

4 0
3 years ago
Other questions:
  • Perform the indicated operation. 3 + (-4) 1 -1 7 -7
    9·2 answers
  • s the data set “types of fruit at the grocery store” qualitative or quantitative? If it is quantitative, is it discrete or conti
    12·2 answers
  • Pine Bluff Middle School is having its annual Spring Fling dance, which will cost
    11·1 answer
  • What's the geometric mean of 13 and 17?
    7·2 answers
  • 1. Graph the six terms of a finite series where a1 = 5 and r = 1.25.
    15·2 answers
  • What is the size of the angle at the top labeled A?
    7·2 answers
  • A population of deer in an area is 2000 and is decreasing at a rate of 15% per year. At this rate what will the deer population
    7·1 answer
  • Write an equation from the given table.
    8·1 answer
  • 259 Students go on a field trip. There are 19 vehicles, some vans and some buses.
    10·1 answer
  • What number is 10 times as much as 50
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!