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mars1129 [50]
3 years ago
8

Ms. Williams wants to analyze the scores for the first unit test of her NC Math 1 class

Mathematics
2 answers:
marishachu [46]3 years ago
6 0

Answer:

Mean:79

Median:81

Standard deviation:15

Interquartile range:22

kondor19780726 [428]3 years ago
6 0

Mean (aka average)-79.8928

<em>add all the numbers together and divide by how many numbers there are </em>

<u>sum of terms-2237</u>

<u>number of terms-28</u>

Median- 81

I do it this way-

order the numbers from least to greatest

cross off the front number and back number until you are left with a middle

in this case there were 2

80 and 82

the average of those two is 81

Standard Deviation-15.37237

Interquartile Range-22.5

<em>25th percentile-71</em>

<em>50th percentile-81</em>

<em>75th percentile-93</em>

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ASHA 777 [7]

Answer:

AB =24

Step-by-step explanation:

So, since all the sides are equal, you can just take two of the sides and set em equal to each other to find x and then, solve for AB

4x+8 =6x

8= 6x-4x

8=2x

8/2 =x

x= 4

Now, find AB, which is 4x+8

4(4) + 8

16+8 = 24

Hope this helps!

Please mark brainliest if you think I helped! Would really appreciate!

5 0
3 years ago
Which expressions are equivalent to the one below? Check all that apply. 53 • 5x
weeeeeb [17]
<span>

</span>Calculate 3 x 5, which is 15.Since 15 is two-digit, we carry the first digit 1 to the next column.

Calculate 5 x 5, which is 25. Now add the carry digit of 1, which is 26.Since 26 is two-digit, we carry the first digit 2 to the next column.

Bring down the carry digit of 2.


<span>Therefore, 53 x 5 = 265.</span>

4 0
2 years ago
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