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Alinara [238K]
3 years ago
6

Maths hw???????please help^^^^^^^^

Mathematics
1 answer:
belka [17]3 years ago
7 0
6(2x+1) ≤ 5x-1
Distribute
12x+6 ≤ 5x-1
-5x -5x

7x+6 ≤ -1
-6 -6

7x ≤ -7
/7 /7

x ≤ -1
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Step-by-step explanation:

Angle 1 will be 90° when it subtends a 180° arc. That means the sum of 100° and (x+10) must be 180°, so (x+10) = 80°.

We assume this is intended to mean ...

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If the intent is (x+10°) = 80°, then x=70°.

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<em>Comment on the numbers here</em>

Units need to be properly specified in problems of this nature. <em>As written</em>, we probably should assume that 10 is <em>radians</em>, and x is a large negative number, about -8.60374 (radians), or -492.958°.

A number of radians is a "pure number." It has <em>no units</em>. The term "radians" is used to signify that the number is considered to be an angle measure.

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