41
(a+b)2
Pythagoras.
The surface area is length times width plus length. Then you find the square root of the width divided by two and then squared. You add this to the height squared plus the width. The width is multiplied by the square root of 1/2 squared plus the height squared.
The hypotenuse of a right angle triangle when squared is equal to the base squared plus the height squared and the formula is usually given as:- a2+b2 = c2 whereas a and b are the base and height respectively and c being the hypotenuse which is the largest side
k = 0.1
Using the discriminant of b^2 -4ac = 0 the value of k works out as -2
They are +/- 5*sqrt(2)
7(k + 5)(k - 4)
It is (-0.3, 0.1)
Using the discriminant for a quadratic equation the value of k works out as plus or minus 12.
104
When factored it is: (3k+5)(k-1)
No
Using the discriminant the possible values of k are -9 or 9
2
6 squared plus 9 squared is equal to 117.