Discriminant b^2-4ac = (-9)^2 - 4*2*9 = 9
so there are 2 roots
because of the -9x and 9 they will both be positive
132..............................................
Answer: The answer is option C: 10cm, 6cm and 8cm
Step-by-step explanation: A right angled triangle has an hypotenuse (the longest of all three sides) facing the 90 degree angle. Also a right angled triangle can be solved by means of the Pythagoras theorem which states that;
AC^2 = AB^2 + BC^2
Where AC is the hypotenuse (10cm) and AB (6cm) and BC (10cm) are the other two sides.
If that is the case, we can insert the values as given in option C to know whether or not they make up a right angled triangle. Therefore
10^2 = 6^2 + 8^2
100 = 36 + 64
100 = 100
Therefore the side lengths 10cm, 6cm and 8cm satisfies the requirements for a right angled triangle
Answer: 0.970 ??
Step-by-step explanation:
So I think it would be 55 because the base times the height = 15 and base length = 40
