3 years ago

Is this statement always sometimes or never true. If x and y are supplementary angels then x is obtuse

2 answers:

6 0

Sometimes

supplementary means adds to 180

so example
40 and 140
either could be x or y
obtuse means more than 90 degrees
140>90 so it's obtuse

sometimes true because x could be either obtuse or not

olga nikolaevna [1]3 years ago

5 0

Someimes becasue either x or y could be obtuse.

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Answer:

X from 0 to 21

Y from 0 to 7

Z from 0 to 3

Step-by-step explanation:

Since we are being asked by the integration limits in first octant (positive x, positive y and positive z) we need to know where does the plane intersect this axes. For this we have:

for x=0 and y=0

7z=21

z=3

for x=0 and z=0

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for z=0 and y=0

x=21

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X from 0 to 21

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Z from 0 to 3

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