dejahg4530

23.05.2020 • 

Mathematics

100 ft
y ft
x ft
Which system of equations can be used to determine y, the height above the ground at the top of the wall, and the horizontal distance
between where the wall begins and where it ends at ground level.
Recall the Pythagorean theorem, 2 + b2 = 2, where a and b are the side lengths of a right triangle, and is the length of the hypotenuse.
A. 1+ + y = 100
y = 3:
B. + y = 100
1 = = 3y
C -2 + y2 = 1002
1 * = 3y
D S2 + y2 = 1002
1y = 3:

Ответ:

linkhyrule1138

27.12.2020

Mathematics

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Pax:
7.6 ft,   519 lb.
snowflake:
8.2 ft,   549 lb.
519 = 7.6 m + b
549 = 8.2 m + b

- 519 = - 7.6 m - b
+
  549 = 8.2 m + b

30 = 0.6 m
m = 30 : 0.6
m = 50
410 + b = 549
b = 549 - 410
b = 139
linear model:
y = 50 x + 139
jo jo:   5.8 ft,   460 lb.
y = 50 * 5.8 + 139 = 429
460 - 429 = 31 lb.
weight of dolphin jo jo differs most from the value predicted by the model.

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