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3 years ago

HELP NOW PLEASE I WILL GIVE BRAINLIEST!!!!! I NEED IT RIGHT AWAY PLZ

Mathematics

2 answers:

Vitek1552 [10]3 years ago

7 0

Answer:

Step-by-step explanation:

lukranit [14]3 years ago

6 0

The Answer Is 4.
20 - 4 = 16
16 - 4 = 12
12 - 4 = 8

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Given the cosine equation y = 2cos(4x) - 1, What is the midline?

pogonyaev

Answer:

$y = 2 \cos(4x) - 1 \\ when \: y = 0 \\ \cos(4x) = \frac{1}{2} \\ 4x = 60 \\ x = 15 \\ when \: x = 0 \\ y = 2 - 1 = 1 \\ intercepts = > (15, \: 0) \: and \: (0, \: 1) \\ midpoints : ( \frac{15 + 0}{2} , \: \frac{0 + 1}{2} ) \\ = (7.5, \: 0.5) \\ gradient = \frac{1 - 0}{0 - 15} \\ = - \frac{1}{15} \\ y = mx + c \\ at \: (7.5, \: 0.5) \\ 0.5 = - \frac{1}{15} \times 7.5 + c \\ 0.5 = - 0.5 + c \\ c = 1 \\ \therefore \: y = - \frac{1}{15} x + 1 \\ = > 15y = - x + 15$

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3 years ago

What is the intermediate step in the form (x + a)2 = b as a result of completing the

Eddi Din [679]

Answer:

(x + 7)^2 = 64

Step-by-step explanation:

x^2 + 23x – 19 = 9x - 4

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Completing the square:

(x + 14/2)^2 - (14/2)^2 = 15

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3 years ago

X - 6y = 4 and 3.x – 18<br> How many solutions

Kobotan [32]

Answer:

None

Step-by-step explanation:

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3 years ago

Plz give me the answer as the picture..

Juli2301 [7.4K]

2 is the answer!!!!!!!!!!

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4 years ago

Which is an equation of the line that passes through the point (8,7) and is perpendicular to the line whose equation is y = 4x-1

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Answer:

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Step-by-step explanation:

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3 years ago