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3 years ago

Part A: Explain why the x-coordinates of the points where the graphs of the equations

1 answer:

6 0

Ok so for part A, the x-coordinate of the intersection is the solution to 2−x=4x+3.
Part B y>3x+10 for (8,10)
10>3(8)+1010>34
I am not sure about the thrid one

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Inessa [10]

<h3>The distance between two landmarks is 123 meters</h3>

Solution:

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From figure,

a = 90

b = 130

c = d

Therefore,

$d^2 = 90^2 + 130^2 - 2(90)(130)\ cos 65\\\\d^2 = 8100 + 16900 - 23400\ cos\ 65\\\\d^2 = 25000 - 23400 \times 0.4226\\\\d^2 = 25000 - 9889.267\\\\d^2 = 15110.73\\\\d = 122.92\\\\d \approx 123$

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