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iheartgirl9373
24.06.2019 •
Mathematics
1. find the coordinates of the midpoint between point a(18, -6) and the origin. 2. find the coordinates of the midpoint of jk if j (-9, 5) and k(21, -7). everyone!
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Ответ:
The midpoint is given by finding the average x-value and the average y-value, thus the formula would be:
M = ( (x1 + x2)/2, (y1 + y2)/2 ), where (x1, y1) and (x2, y2) are two points on the graph
1. We have two points here, the origin - ie. (0, 0) - and A(18, -6). Thus, using the formula above for the midpoint we get:
M = ( (0 + 18)/2, (0 + (-6))/2 )
M = (18/2, -6/2)
M = (9, -3)
2. Using the same approach, we can find the midpoint for this question using the points J(-9, 5) and K(21, -7):
M = ( (-9 + 21)/2, (5 + (-7))/2 )
M = (12/2, -2/2)
M = (6, -1)
Ответ:
north side of town:
15 blocks ; 225 people per block; existing 36 pizza places
15 x 225 = 3,375
36/3375 = 0.0107
south side of town:
22 blocks ; 275 people per block; existing 37 pizza places
22 x 275 = 6,050
37/6,050 = 0.006
The pretty pizza company should open in the south side of town because the ratio of pizza place per person is 0.006, less than 0.01