2 years ago

Under what condition the composite function of any two function is an identity function?

Mathematics

1 answer:

Veseljchak [2.6K]2 years ago

6 0

Answer:

under the condition of f(x)=x composite function is an identity one

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The measure of an interor angle of a regular polygon is given. Find the number of sides in the polygon.

EleoNora [17]

Let side be n

$\\ \sf\longmapsto 120n=(n-2)180$

$\\ \sf\longmapsto 120n=180n-360$

$\\ \sf\longmapsto -60n=-360$

$\\ \sf\longmapsto n=6$

$\\ \sf\longmapsto 160n=(n-2)180$

$\\ \sf\longmapsto 160n=180n-240$

$\\ \sf\longmapsto -20n=-240$

$\\ \sf\longmapsto n=12$

$\\ \sf\longmapsto 144n=(n-2)180$

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$\\ \sf\longmapsto -36n=-360$

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2 years ago

Determine the value of w and x in the figure below. (Thanks for the help I really appreciate it!)

storchak [24]

Triangle HAM looks like an isosceles triangle, and we know that in an isosceles triangle 2 of the angles are the same.

so :
180 - 106 = 74 ( sum of the other 2 angles )
74/2 = 37 ( sum of angle HMA / HAM )

angles on a straight line add up to 180.
180-37=143 ( angle x )

since triangle YMH is also an isosceles,
180-37=143
143/2=71.5 ( angle w )

7 0

3 years ago

Please help solve for b.

Zanzabum

Subtract a from both sides of the equation.

b=−a+14

6 0

3 years ago

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When five is added to three more than a certain number, the result is 19. What is the number?

pshichka [43]

Answer:

11 easy