Firstly the lines around -14 mean the "absolute value" which means, ignore the sign , it will be always positive. So, 3 (14) is 42.
Now let's go for the 8-11 = -3
now when you cube this number, the result will be negative.
-3 x -3 x -3 = -27.
however, there is a negative sign outisde the brackets, so - (-27) = + 27..
so the result so far is +27 +42 = 69
Now below the line, we have 2^4 = 2 x 2 x 2 x 2 or 4 x 4 = 16 , and then -7 which is 9.
So, what we end up with is 69/9
The answer is 7n-1.3. Use the distributive property to multiply 7 by n-3.4. Subtract like terms and it's simplified
Consider the triangle (<em>in </em><em>which </em><em>angle</em><em>4</em><em> </em><em>is </em><em>present</em>)
by angle sum property,
20 + 40 + angle4 = 180
60 + angle4 = 180
angle4 = 180 - 60
angle4 = 120
Also,
angle2 = 120 (vertically opposite angles)
angle1 + angle2 = 180 (linear pair)
angle1 + 120 = 180
angle1 = 180 - 120
angle1 = 60
