The meaning of a word "or" in the set theory is * 1 point
union
intersection
complement
none of the above

73

step-by-step explanation:

7×3²+10

=7×9+10

=63+10

=73

the figure is a concave pentagon.

step-by-step explanation:

in mathematical context, a pentagon is a flat, two-dimensional closed shape (polygon) with 5 straight sides and 5 angles.

now a pentagon is said to be concave if one or more corners bend inwards and at least one of its angles is 180 degrees or more than 180 degrees.

in the given figure, we can see that we have a corner which is bending inwards and an angle which is clearly greater than 180°. therefore, it is a concave pentagon.

believe that your asking for two answers. the volume of the pyramid is 15 cubic centimeters and if the slant increases by 4 centimeters and its hheight increases by 2 centimeters the volume increases by 6 centimeters because the answer would be 21. 21-15=6. formula to get the volume of a pyramid is v=1/3*(l*w)*h. i could be wrong.

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step-by-step explanation: