(i) false;
Let be N = { 0, 1 , 2}; x * y = x + y => a * a = 2a ∈ { 0, 2 , 4}, which is not a( just for a = 0);
(ii) true;
b * c = c * b => a * ( b * c ) = a * ( c * b ); (1)
but, a * ( c * b ) = ( c * b ) * a; (2)
(1) and (2) => <span>a * (b * c) = (c * b) * a.</span>
To find the slope of a line use the formula m=rise/run to do that all you have to do is take two points from the line
Point S is (10,-14). Between Point T and midpoint of ST, is 5 for x and -9 for y, so you would add 5 to the 5 in the midpoint and subtract 9 from -5, the y value of the midpoint.
Answer:
Sacramento is 8cm from San Francisco.
8cm in map = 91 miles
91/8 = 11.375
1cm in map = 11.375 miles
Sacramento is 7 cm away from Modesto.
7 · 11.375 = 79.625
The actual distance is 79.625 miles
