What is the value of 1st quartile in the data set below? Scores on a math quiz: 65, 90, 100, 72, 88, 55, 73

1 answer:

4 0

First quartile would 65 because....
well first order the numbers around : 55, 65,72,73,88,90,100

the median is 73, the first quartile in the medians of the numbers lower than the whole sets. That means in the subset of the numbers the median would be: 55, 65, 72.
crossing out 55 and 72 you have 65.

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Could someone help me with this please!

sertanlavr [38]

Angles 1, 3, and 4 make up a straight line.
Thus, 3x + 90 + 3x - 6 = 180 (angle sum of straight line)
6x - 6 = 90
6x = 96

x = 16
Now angle 1 becomes 3(16) = 48
Angle 1, 2, and 3 also make up a straight line.
Thus, angle 2 + 48 + 90 = 180
angle 2 + 138 = 180
angle 2, therefore, becomes 42. In essence, (A)

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PLEASE HELP ME ANSWER ASAP!

Blizzard [7]

Either twice or more than twice. But I’d go with twice

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4 years ago

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Which of the following values represent a meaningful difference between two populations? Select all that apply.

Lina20 [59]

Answer: I got you if its not to late the answer is 2,3

Step-by-step explanation

anything above 2 is meaningful so first you would subtract 21.9 28.1 to get 3.7 its above 2 so that's one do the same for the rest anything above 2 is your answer or right at two really hope this helps

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3 years ago

Solve the equation 7/z-1 = 9/z+4

algol [13]

Answer:

z is equal to 18.5

Step-by-step explanation:

When an equation is in the format a/b = c/d, the quickest way to simplify it is to cross multiply. Each side is multiplied by the other sides denominator, eliminating the division:

$\frac{7}{z-1} = \frac{9}{z + 4}\\7(z + 4) = 9(z - 1)\\7z + 28 = 9z - 9\\7z - 9z = -9 - 28\\-2z = -37\\z = 37/2\\z = 18.5$

So z is equal to 18.5

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Domain<br> 6<br>range<br>8,7,-5,6<br> is this a function or not

Fiesta28 [93]

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Step-by-step explanation:

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