-1^3 - -1^2 +1= -1. ...........
Try thinking about negative numbers~ :D
While this is true for positive integers, say, 5 + 6 =11...
would the sum of -15 and -1 be larger than any of the integers?
Answer:
<h3><em>X=14.4</em></h3>
<em>Step-by-step explanation:</em>
<em>As triangles are similar </em>
<em>The ratio of the sides must be equal</em>
<em>so..</em>
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<em>hope it helps...</em>
<em>have a great day!!</em>
8) The figure is a heptagon. This means the sum of the interior angles would be 180(7-2) = 5 * 180 = 900. Then this means you can say that the sum of all angles would equal 900.
(133 + 106 + 120 + 133 + (13 - 9)) + (m + m + m) = 900
-------Combine Like terms----------
496 + 3m = 900
-------Subtraction------------
3m = 404
--------Division--------
m = 404/3
If the answer doesn't seem right, just plug it in!
496 + 3(404/3) = 900
496 + 404 = 900
900 = 900
10) Same thing. The sum of the interior angles in a pentagon are 540.
(122 + 90 + 88 + 96) + k = 540
396 + k = 540
k = 144
11) The angle supplementary to the angle which measures 138 is 42. The sum of all the interior angles of a quadrilateral is 360. Let us call the missing INTERIOR angle x.
(104 + 98 + 42) + x = 360
244 + x = 360
x = 116
So the missing EXTERIOR angle is 180 - 116 which is 64.
12 is a bit confusing without showing you sorry :(
