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vovangra [49]
3 years ago
8

PLEASE HELP!!

Mathematics
1 answer:
Angelina_Jolie [31]3 years ago
8 0

Answer:

B) Median

C)he median is between 80 and 90.

D) The mean test score will increase by 2.

Step-by-step explanation:

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There are 40 people at Drake's sweet sixteen party. Drake's only rule is that everyone in the party must meet and shake each oth
nikdorinn [45]
1) This is a combination, so use ⁴⁰C₂.
     ⁴⁰C₂ = 780
     There are 780 handshakes in total.

2) I got my solution by using the combinations formula. Or another way you              could do this is to add up... 39 + 38 + 37 + 36 + 35 + 34 + 33 + 32 + 31... +1.          You will end up with 780 (I did this to double check my work).

3) The quickest way to figure this out if Drake invited 1,000 people is to use the       natural numbers formula = n(n+ 1)/2.
     Plug the numbers in: 999(1000)/2 = 499,500 
     If Drake invited 1,000 people, there would be 499,500 handshakes.

7 0
3 years ago
Read 2 more answers
Is 16.5 a rational or irrational number ​
Mademuasel [1]

Answer:

It is rational

I'm sorry if it's wrong

Step-by-step explanation:

Rational: Stops

Irrational: Keeps going on

7 0
3 years ago
Find the X and the Y intercept of <br> 4x-y=12
Mashcka [7]

Answer:

x-intercept:  (3,0)  

y-intercept: (0, -12)

I hope this helps!

7 0
3 years ago
8.4 + 0.18x = 0.32x
bogdanovich [222]

Answer:

  x = 60

Step-by-step explanation:

Perhaps you want the solution to this equation.

Subtract 0.18x from both sides:

  8.4 = 0.14x

Divide by the coefficient of x.

  8.4/0.14 = x = 60

3 0
3 years ago
Read 2 more answers
0.30+0.31+0.32+0.33+...0.49+0.50
AlladinOne [14]

Answer:

2.25

Step-by-step explanation:

Just add it up, IDK if it's the full answer because you had 3 dots (...).

8 0
3 years ago
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