ElectricPavlov

(-2)^2 (1+1)+2 = 4 (2) + 2 = 10

Thanx Guest 1     .....    I learned from your answer how to do this mathematically.   I typically revert to graphical solutions when I do not know how to calculate an answer...here is the graph of the equation...... you can see the zeros are at -.2 +.2 and -1.5     so the dimensions are

(b+1.5)(b-.2)(b+.2)      which is the same as guest calculated (though simplified)

Well ....  image uploader is not funcioning presently....will post graph when it becomes available...

(k-9)(k+9)

Sin(75) = sin (45 +30)

trig identity :  sin (x+y) = sinx cosy +cosxsiny

sin(45+30) = sin45cos30 + cos45sin30

                  = (sqrt2 /2)(sqrt3 /2) + (sqrt 2 /2 * 1/2)

                 = ( sqrt 6) /4  +  sqrt 2/4

                   1/4 (sqrt 6 + sqrt 2)

Work = Force x Distance

         = 600N x 15m = 9000 N-m   ( j )

Yes, one trillion is a number......it comes after billions.  Our current national debt is approximately 20 TRILLION dollars.

(k-1)(k-16)

A line from the point that intersects the other line line perpindicularly.

y= -2/3 x + 10/3

Ratio of 7:4  means that 7/11 are boys and 4/11 are girls

7/11(121) - 4/11(121) =  33 more boys than girls