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zaharov [31]
3 years ago
15

For the function given, state the middle line; f(t) = 40cos (80t + 20)

Mathematics
1 answer:
Digiron [165]3 years ago
8 0

In the standard form of the equation

\\ \ f(t)=Acos[b(t\pm c)]+k\\ \\

The middle line =k

For our given problem

f(t) = 40cos (80t + 20)

On comparison we get k=0

Hence middle line=0

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5 0
4 years ago
Read 2 more answers
If D is the midpoint of EG, find the length of EG
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ED = x - 5 <em>given</em>

DG = 4x - 38 <em>given</em>

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-5 = 3x - 38 <em>subtraction property of equality (subtracted x from both sides)</em>

33 = 3x <em>addition property of equality (added 38 to both sides)</em>

11 = x <em>division property of equality (divided 3 from both sides)</em>

ED = x - 5 → ED = 11 - 5 → ED = 6 <em>substitution</em>

since ED = DG, then DG = 6 <em>transitive property</em>

ED + DG = EG <em>segment addition property</em>

6 + 6 = EG <em>substitution</em>

12 = EG <em>simplified like terms</em>

Answer: 12

7 0
3 years ago
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