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Scilla [17]
3 years ago
12

90° 30 x help me with this work

Mathematics
1 answer:
ehidna [41]3 years ago
6 0

Answer:

90°

Step-by-step explanation:

x + 90 \degree = 180 \degree \\ (linear \: pair \:  \angle s) \\  \therefore \: x = 180 \degree  -  90 \degree  \\ x =  90 \degree

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3 years ago
Which equation has the solution x = 9?
zepelin [54]

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Step-by-step explanation: It’s simple so whenever you see x in the equation you just plug 9 in it’s place for example:

equation 1: 2x-3=15 —> 2(9)=18-3= 15 for this equation 9 is the solution

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equation 4: 81(9)-3=6 —> 726 does NOT equal to 6 so not a solution

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(hope this helps)

6 0
3 years ago
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erik [133]
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mamaluj [8]

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Step-by-step explanation:

In the attached file

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