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AURORKA [14]
2 years ago
10

The table shows the scores of 20 students on a history test. What is the average student score?

Mathematics
1 answer:
stepan [7]2 years ago
8 0
I assume theanswer will be B 


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PLEASE HELP FOR 48 POINTS PLEASE!<br><br><br><br> show/explain your answer and work
pentagon [3]

Answer:

c  This is the direct variation

Step-by-step explanation:

The equation for direct variation is y= kx

Solving this for k

y/x =k

So y/x must be a constant

a.  9/3 =3

2/7 does not =3  so this is not a direct variation


b 1/2 = .5

-3/6 = -.5

This is not the same so this is not a direct variation


c.  27/9 =3

18/6 =3

9/3 =3

This is a direct variation with a constant of 3


d 5/-7 = -5/7

1/-3 = -1/3

This is not the same so this is not a direct variation

4 0
3 years ago
Read 2 more answers
If the circumference of a circle is divided by the length of its diameter. whats the result
Mnenie [13.5K]

Answer:

3.14 or π  (It's the same thing)

Step-by-step explanation:

If you divide the circumference by its diameter, the constant ratio is called Pi

8 0
3 years ago
Any portion of the circumference of a circle is called a(n)
Alex777 [14]
Any portion of the circumference of a circle is called a radius
5 0
3 years ago
If the speed limit of the highway is 60 mph which car exceed the speed limit assume other cars were traveling at a constant spee
Sedaia [141]

Answer:

The first car

Step-by-step explanation:

183/3 = 61mph

6 0
2 years ago
Read 2 more answers
A smoke jumper jumps from a plane that is 1700 ft above the ground. The function y = -16t2 + 1700 gives the jumper's height y in
lakkis [162]

Answer: (A) 6.6 sec (B) 6.89 sec

<u>Step-by-step explanation:</u>

    y    = -16t² + 1700

 1000 = -16t² + 1700

 <u>-1700</u>     <u>         -1700  </u>

  -700 = -16t²

 <u> ÷-16  </u>   <u>÷-16 </u>

 43.75 = t²

√43.75 = √t²

   6.6 = t

***********************************

    y    = -16t² + 1700

  940 = -16t² + 1700

 <u>-1700</u>     <u>         -1700  </u>

  -760 = -16t²

 <u> ÷-16  </u>   <u>÷-16 </u>

  47.5 = t²

√47.5 = √t²

  6.89 = t

4 0
3 years ago
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