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anastassius [24]
3 years ago
7

If m angle RTS = 8x + 18, find x so that line TR is perpendicular to line TS

Mathematics
1 answer:
Kitty [74]3 years ago
8 0

Answer:

Point T is the right angle of the triangle, so RTS = 90 degrees

8x + 18 = 90 (degrees)

8x = 72

x = 9 degrees

Step-by-step explanation:

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Solve 3(a + 3) – 6 = 21.
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Answer:

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Step-by-step explanation:

to find the value of a you need to simplify the equation first. so...

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3a+3=21 (you collect the like terms then)

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a=18/3

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to check your answer substitute 3 instead of a

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3(6+3)-6=21

3(9)-6=21 (according to BODMAS since multiplication comes first you multiply 3 with 9 before subtracting it from 6.)

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