First we list the multiples of each number.
multiples of 5 are 10,15,20,25,30,35,40,...
multiples of 6 are 12,18,24,30,36,42,48,...
multiples of 15 are 30,45,60,75,90,...
now, when you look at the list of multiples, you can see that 30 is the smallest number that appears in each list.
therefore, the least common multiple of...... 5,6 and 15 is 30.
volume of a cylinder = V = πr²h, r = radius and h = height.
if r = 3 and h = 4, then V = π3²(4) => V = 36π => V ≈ 113.1.
The base of the triangle is x² + 2x + 4
The height of the triangle is 2x² + 2x + 6
The area of the triangle is
A = (1/2) b h
Substituting
A = (1/2)(x² + 2x + 4)(2x² + 2x + 6)
Which can be expanded or factored
Just plug in the numbers for the variables.
20+3(8)+17(2)=
0,3/4
1/2,1
X being the first, y second term verify the equation