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valkas [14]
3 years ago
5

This data set gives the scores of 41 students on a biology exam: {66, 67, 67, 68, 80, 81, 81, 82, 22, 65, 66, 68, 69, 70, 71, 71

, 71, 72, 72, 73, 73, 74, 75, 78, 78, 78, 78, 79, 79, 80, 80, 82, 83, 75, 75, 75, 76, 77, 83, 83, 99} Which of the following is the best measure of the central tendency?
Mathematics
1 answer:
Naddika [18.5K]3 years ago
3 0
I think the answer is 74.
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Which of the following expressions is equivalent to 4n + 8
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Answer:

You have to give us the other expressions :)

Step-by-step explanation:

6 0
3 years ago
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An Ontario lottery has the following structure, the first person drawn from the names wins $15 000. Each subsequent person drawn
elixir [45]
  • The first four terms are : 15000, 14850, 14700, 14550
  • a = 15000 ; d = -150
  • The explicit formula is : a_{n} =  - 150n \:  + 15150

The first term of the sequence, a = 15,000

Each subsequent winner gets $150 less

Hence, the common difference, d = - $150

The first four terms :

First term, a1 = $15000

Second term, a2 = a - d = $15000 - $150 = $14850

Third term, a3 = a2 - d = $14850 - $150 = $14700

Fourth term, a4 = a3 - d = $14700 - $150 = $14550

a, for the sequence is the first term = $15000

d, for the sequence is the common $150 (difference between successive wins).

Explicit formula for the general term :

a_{n} \:  = nd \: + c

For n = 1

15000 = 1( - 150)  + c

15000 =  - 150 + c

c = 15150

Hence, the explicit formula for the nth term is :

a_{n} \:  =  - 150n \:  + 15150

Learn more : brainly.com/question/12006170

3 0
3 years ago
Please help!! Show work please!!
Nonamiya [84]

1. 3x - 2y = 8 Subtract 3x on both sides

-2y = 8 - 3x Divide by -2 on both sides to get y by itself

y = -4 + 3/2x


2. a + b / 3 = 5 Multiply 3 on both sides

a + b = 15 Subtract a on both sides to get b by itself

b = 15 - a


3. 12x - 4y = 20 Subtract -12x on both sides

-4y = 20 - 12x Divide -4 on both sides to get y by itself

y = -5 + 3x


4. y + 3 = -5(x - 2) Multiply -5 to (x-2)

y + 3 = -5x + 10 Subtract 3 on both sides to get y by itself

y = -5x + 7

7 0
3 years ago
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Two cars are 50 miles apart and driving towards each other. One car is driving at a speed of 30 miles per hour and the other car
ale4655 [162]

Answer:

40 minutes

Step-by-step explanation:

30x+45x=50

75x=50

x=.6667 hours or 40 minutes

check:

30 mph for 40 minutes=20 miles

45 mph for 40 minutes=30 miles

total=50 miles

3 0
3 years ago
Joseph has saved $500. He has to pay his mom $25 a month for his phone, but he wants to have at least $200 left to pay for a new
irakobra [83]

Answer:

500-200=300 300 divided by 25 give you x, the number of months

Step-by-step explanation:

4 0
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