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STatiana [176]
3 years ago
15

Aubree wanted to see if there is a connection between the time a given exam takes place and the average score of this exam. She

collected data about all the exams from the previous year and arranged the average scores of the exams according to the period they took place, as shown below . (PLEASE HELP .. WHOEVERS FAST AND RIGHT WILL BE BRAINLIEST)
Mathematics
2 answers:
Andrews [41]3 years ago
5 0

Answer:

you can divide the answers by the time duration of the exam and get your answer

Step-by-step explanation:

Zina [86]3 years ago
3 0

Answer:

No assotioation

Step-by-step explanation:

You might be interested in
Graph the system of inequalities presented here then use your graph to answer the following questions:
Nookie1986 [14]

Answer:

Part A) The graph in the attached figure (see the explanation)

Part B) The ordered pair is a solution of the system of inequalities (is included in the solution area for the system)

Step-by-step explanation:

Part 1) Graph the system of inequalities

we have

y> 5x+5 ----> inequality A

The solution of the inequality A is the shaded area above the dashed line y=5x+5

The slope pf the dashed line A is positive m=5

The y-intercept of the dashed line A is (0,5)

The x-intercept of the dashed line A is (-1,0)

y>-\frac{1}{2}x+1 ----> inequality B

The solution of the inequality B is the shaded area above the dashed line y=-\frac{1}{2}x+1

The slope pf the dashed line B is negative m=-1/2

The y-intercept of the dashed line B is (0,1)

The x-intercept of the dashed line B is (2,0)

The solution of the system of inequalities is the shaded area above the dashed line A and above the dashed line B

using a graphing tool

see the attached figure

Part B) Is the point (-2, 5) included in the solution area for the system? Justify your answer mathematically

we know that

If a ordered pair is a solution of the system of inequalities, then the ordered pair must satisfy both inequalities

substitute the value of x and the value of y in each inequality

For x=-2, y=5

<em>Verify inequality A</em>

5>5(-2)+5

5>-5 ---> is true

so

The ordered pair satisfy inequality A

<em>Verify inequality B</em>

5>-\frac{1}{2}(-2)+1

5>2 ---> is true

so

The ordered pair satisfy inequality B

therefore

The ordered pair is a solution of the system of inequalities (is included in the solution area for the system)

6 0
3 years ago
Six of the nine students are from middle gerogia state college. What is the probability that all three interviewed students are
ozzi

Answer:

0.2381 = 23.81%

Step-by-step explanation:

To calculate this probability, we can calculate the probability of each student of the 3 students interviewed being from middle georgia state college.

If inicially there are six students from middle georgia state college among the nine students, the probability of the first student chosen being from middle georgia state college is 6/9.

Then, as one student was already picked, we have now 5 students from middle georgia state college in a total of 8 students, so the probability of the second student will be 5/8.

In the same way, the third student will be picked in a group of 7 students, where 4 are from middle georgia state college, so the probability is 4/7.

Multiplying all the probabilities, we have the probability of all three students interviewed being from middle georgia state college:

P = (6/9) * (5/8) * (4/7) = 120/504 = 0.2381 = 23.81%

6 0
4 years ago
Identify the sequence as arithmetic geometric or neither -8, -3, 6, 11, -22
melomori [17]

Answer:

Neither

Step-by-step explanation:

Check if it's arithmetic:

-8, -3, 6, 11, -22

+5  +6   +5  -33

Nope

Check if geometric:

-8, -3, 6, 11, -22

*3/8  *-2 *11/6 *-2

Nope

So it's neither

5 0
3 years ago
Andrei has a glass tank. First, he wants to put in some marbles, each of which has a volume of 0.04liters. Then, he wants to fil
kipiarov [429]
Thats 35 litters because  
0.04*50 is 2
2+33 is 35
8 0
3 years ago
Read 2 more answers
What is x+y=10;y=x+10
Alenkasestr [34]

[ Answer ]

\boxed{\bold{X \ = \ 0, \ Y \ = \ 10}}

[ Explanation ]

  • System Of Equations \bold{\left \{ {X \ + \ Y \ = \ 10} \atop {Y \ + \ X \ = \ 10}} \right.}

-----------------------------------

  • [Substitute] Y = X + 10

\bold{\begin{bmatrix}x+x+10=10\end{bmatrix}}

  • Isolate x for x + x + 10 = 10: x = 0

For y = 10

Substitute x = 0

Y = 0 + 10

0 + 10 = 10

y = 10

  • Solutions

X = 0

Y = 10

\boxed{\bold{[] \ Eclipsed \ []}}

3 0
3 years ago
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