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Ne4ueva [31]
3 years ago
7

PLEASE HELP.BEST ANSWER TO BRAINILIEST ANSWER.

Mathematics
1 answer:
Kruka [31]3 years ago
4 0
1. Okay, we're looking at this list, and we need to find the mathematical mean, median, and modes of this list.

Median = The value closest to the middle of the set.

17, 18, 18, 19, 20, 21, 21, 21, 22, 22, 22, 22, 23, 25, 26

If we count, there are 15 values, so we just have to find the middle one, which is 21

The median of the first problem is 21.

Mode = The number that occurs most frequently in the set. In this set, we can see that the number 22 appears 4 times, which is more than any other number in the set.

22 is the mode for the first problem.

Range = The distance in numeric value between the highest number of the set and the lowest number. 

26 is the highest number and 17 is the lowest.

26 - 17 = 9

The range of the first problem is 9.

2.  We solve for average by adding all values together and then dividing by the amount of values there are.

(17 + (18 * 2) + 19 + 20 + (21 * 3) + (22 * 4) + 23 + 25 + 26) / 15 = 21.13... = 21 \frac{2}{15}

<span>The average amount of grain needed is 21 \frac{2}{15}

3. For this one, we just have to solve it the same way, and then compare the central measures.

Median = 21 (For this one, there was an even amount of numbers, so we just took the average of the two closest to the middle, both of which were 21. The average of two numbers of the same value is that same number)

Mode = 22

Range = 9

The three values have not changed from the original values, so there is no change.

Hope that helped =)</span>
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3 years ago
I only need help with number 9 plz
Varvara68 [4.7K]

Answer:

<h2>Letter C</h2>

Step-by-step explanation:

If we look on the number line we see that there is a point on -3, another point on -1, 2, and 7.

These points tell us our answer, but the question states it doesn't have to be in any order.

As we look at answer A we see -3, 1, 2, and -7. That's incorrect since there is no positive 1 nor an -7.

As we look at answer B we see -3, 7, 1, and -2. That's incorrect since there is no positive 1, and not a -2.

As we look at answer D we see -2, 3, 1, and 7. That's incorrect since there is no positive 2, no positive 3, and no negative 1.

C has to be the correct answer since it's the only answer left and has the 4 numbers that are on the number line.

Therefore, the correct answer is C.

Best of Luck to you.

If you have any questions, feel free to comment below.

6 0
3 years ago
2. f(x) = 3(x - 2)2 + 6<br>a. Standard Form:​
Alexandra [31]

Answer:

{3x}^{2}   - 4x + 10 = 0

Step-by-step explanation:

3(x - 2) {}^{2}  + 6 \\  3 \times x {}^{2}  - 4x +  {2}^{2}  + 6 \\ 3x {}^{2} - 4x + 4 + 6 \\  {3x}^{2}   - 4x + 10 = 0

6 0
3 years ago
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