Which combination of three side lengths will NOT form a triangle? 15 cm, 8 cm, 6 cm

9 mm, 6 mm, 5 mm

12 in, 9 in, 6 in

4 ft., 5 ft., 3 ft.

The first set.

Step-by-step explanation:

15 cm, 8 cm and 6 cm, because 15 > 6 + 8.

15 cm, 8 cm, 6 cm

Step-by-step explanation:

This is because the third length will always have to be less than the first and second added together. When you take 8 plus 6 the answer is 14 but 15 is larger than 14 so you cannot make a triangle out of that.

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

answer: your gay

step-by-step explanation:

you dont know math