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2 years ago

Pre college need helpp

Mathematics

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UkoKoshka [18]2 years ago

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Answer:

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Which of the following intervals represents the set (1,4) u [2,6]?

fenix001 [56]

Set is a sum of two intervals :(1,4) u [2,6]
In the first interval it is open on both sides so 1 and 4 don't belong to this interval, the second is closed so both 2 and 6 belong to interval and numbers between 2 and 6
We can write it as 1<x $\leq 6$
summing both sets we have one set: (1,6]
so
a) represent our set
b) also represent because all numbers between 4-6 and 6 are in our set
c)also represent, all numbers are in main set
d)also represent

8 0

3 years ago

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1,8,5,4,1,8,5,4<br>Mean:<br>Median:<br>Mode:

Lynna [10]

Answer:

1. Mean = 55.8

Median = 23

Mode = None

2. Mean = 2.1

Median = 1.4

Mode 0.5

3. Mean = 4.5

Median = 4.5

Mode = 1,4, 5, 8

4. Mean 68

Median 58

Mode = 0

Step-by-step explanation:

Mean = 17 + 25 + 23 + 200 + 14 / 5 = 279/5 = 55.8

Median= Because its odd you put them in order 17, 14, 23, 25, 200 = 23 because it is the middle number. Mode = None

2. Mean = 0.5 + 1.4 + 3.0 + 7.0 + 0.5 +1.8 + 0.5 = 14.7 = 14.7/7 = 2.1

Median = because it is odd you put them in order 0.5, 0.5, 0.5, 1.4, 1.8, 3.0, 7.0 = 1.4 The mode is 0.5 because it repeats three times

3. Mean = 1 + 8 + 5 + 4 + 1 + 8 + 5 + 4 = 36/8 =4.5

Median = Because its even you divide by the two middle numbers = 1, 1, 4,4, 5, 5 , 8 , 8 = 4+5 = 9/2 = 4.5 Mode = 1, 4, 5, and 8 are the numbers that are repeated most often.

Mean = 0+78+99+58+65+0+47+38+227 = 68 Median, Because there is an odd number you get the odd number from the middle. 0, 0, 38, 47, 58, 65, 78, 99, 227 = 58 Mode = 0 because it repeats more often.

Sorry I kept commenting I'm new to this platform!

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3 years ago

pic Test Copy 1 Tammy is selling cookies for a fundraiser. She promised to sell 120 boxes by the end of the month. If she has so

Vesna [10]

Answer:

Tammy has sold 40 boxes so far

Step-by-step explanation:

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3 years ago

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Subtract the quotient of 8 divided by 7 from 9

stiv31 [10]

Answer:

9-(8 divided by 7)

Step-by-step explanation:

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4 years ago

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What would be the most logical first step for solving this quadratic equation.

Svetradugi [14.3K]

We need to put all elements in one side so that the other side is 0. Then, apply quadratic formula to solve the problem. To do that, we need to subtract both sides by 4.

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4 years ago

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