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snow_lady [41]
3 years ago
6

Help me please (#20) I need this by tomorrow

Mathematics
2 answers:
Rama09 [41]3 years ago
7 0

Answer:

the third one

Step-by-step explanation:

Elza [17]3 years ago
4 0

Answer:

210 degrees clockwise and 150 degrees anticlockwise

Step-by-step explanation:

A watch is divided into 12 equal sectors...in which each angle is 360/12 = 30 degrees

Hence there is seven sectors between the hour hand at seven and minute hand at 12...so...the angle is 30 × 7 = 210 degrees clockwise....and 360 - 210 = 150 degrees anticlockwise

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Answer:

\boxed{\sf \ \ 9x^2-18x-7 \ \  divided \ by \ (3x+1) \ is \ (3x-7) \ }

Step-by-step explanation:

Hello,

let's find a and b reals so that

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so we can write

9x^2-18x-7=(3x+1)(3x-7)

so 9x^2-18x-7 \ divided \ by \ (3x+1) \ is \ (3x-7)

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