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torisob [31]
2 years ago
7

Please need help with this one

Mathematics
2 answers:
12345 [234]2 years ago
5 0
Y-y1=m(x-x1)
x1 and y1 are coordinates of first point
x and y are coordinates of second point
(7,7) x1=7, y1=7
(-9,-1) x= -9, y= -1
-1-7=m(-9-7)
-8=m(-16)
-8= -16m multiply by -1
8=16m
m=8/16
m=1/2
lapo4ka [179]2 years ago
4 0

Answer:

y - 7 = 1/2(x - 7)

Step-by-step explanation:

Point slope form is y - y1 = m (x - x1)

So find m = y2 - y1/ x2 - x1, so m = -1 - 7 / -9 - 7, m = -8 / -16 so m = 1/2

Then sub your (7,7) so y - 7 = 1/2(x - 7)

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2 years ago
What is the interquartile range of the data?<br><br> I think the answer is B.
zhenek [66]

Answer:

No, correct option is (A) 117.5

Step-by-step explanation:

Interquartile range (IQR) measures the skewness using 50% of the data. It is the difference between the third quartile and the first quartile. i.e.

    IQR = Q₃ - Q₁

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100, 120, 130, 188, 196, 220, 265, 300

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So, Q₁ = 125 and   Q₃ = 242.5

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Hence, Correct option is Option (A).

4 0
2 years ago
Two groups collect litter along the side of the road. It takes each group 5miniutes to clean up a 200-yard section. How long doe
Snezhnost [94]
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5 0
3 years ago
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