3 years ago

Graph: f(x) = 4 + 2cos (4x + 90°)

1 answer:

7 0

The graph is counting by ones.

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GalinKa [24]

Use Pythagorean Theorem
c2 = a2 + b2
152 = a2 + 12
a2 = 152 - 122
=225 - 144 = 81
a = 9 ft
Distance from base of antenna = 9ft

4 0

2 years ago

Fed [463]

multiply everything by 8

2x+16 = -5x-40

-16 on both sides

2x = -5x-56

+5x on both sides

7x = -56

x=-8

so the first option

5 0

3 years ago

GREYUIT [131]

Answer:

Step-by-step explanation:

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3 years ago

allochka39001 [22]

Answer:

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Step-by-step explanation:

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3 years ago

Taya2010 [7]

Answer:

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Step-by-step explanation:

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3 years ago