Answer:
1. The missing value is 9
2. The missing value is 81
Step-by-step explanation:
1. To find the missing value of a perfect square you divide the center term (-6 as is -6x) by two to get 3 then square the three to get 9
To check this write it as the simplified form (x-3)^2 and multiply it out again using foil. x times x is x^2, -3 times x is -3x ( this happens twice adding up to the -6x), and -3 times -3 is 9 making it x^2 -6x +9
2. Follow the steps for the previous problem to get the same answer for this one. Divide 18 (middle term) by 2 making 9. Then square the 9 making 81.
What number of students describe the first quartile?<br>
20, 18, 21, 18, 22, 24, 18, 23, 23, 24,
kykrilka [37]
Answer:
Quartile 1 is 18
Step-by-step explanation:
Arrange the numbers in order from least to greatest;
18, 18, 18, 20, 21, 22, 23, 23, 24, 24
Find the Median = (21+22)/2= 21.5
Find the median (Q1) between 21.5 and 18 = 18
Find the median (Q2) between 21.5 and 24 = 23
Answer:
<h2><u><em>
the circumference of a circle is defined as:</em></u></h2><h2><u><em>
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c = pi*diameter</em></u></h2><h2><u><em>
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if we have x segments of length y, then we can fit:</em></u></h2><h2><u><em>
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c/y = z</em></u></h2><h2><u><em>
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we can fit z segments of size y on the circumference c</em></u></h2><h2><u><em>
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Answer:
The third answer choice.
Step-by-step explanation:
The name of a plane is the letter in the corner.
