Answer:
-19
Step-by-step explanation:
-95/5
The answer is (4, -1)
x = 4 and y = -1
If you want the work ask me on the comment if not this is the correct answer
So
(x-4)^2=(x-4)(x-4)=x^2-4x-4x+16=x^2-8x+16
Small (x)
9(x) + 9(x) - 1 = 30
2 x 9(x) - 1 = 30
2 x 9(x) = 30 + 1
2 x 9(x) = 30
simplify
9x = 31/2
x = 1/2 x log (3) (31/2)
or
x ≈ 1.24741
The measure of arc CD, the portion of Earth from which the signal is visible is 56°.
<h3>How to calculate the angle?</h3>
From the information given, we are told that The satellite can only send a signal over the part of Earth that is visible to the satellite.
Let the angle be a. Therefore,
Cos a = 4000/(4000 + 2800)
Cos a= 4000/6800
Cos a = 0.5882
Cos a= 56°
Learn more about angles on:
brainly.com/question/25716982
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