11,900,000,000 = 1.19 x 10^10
D = 117
because angle 63 = angle 37+a because they are vertical angles,
therefore angle angle 37+a= angle b because they are corresponding angles
so if angle b=63 then angle d=117, so that together they equal 180, a supplementary angle.
Answer:
Proprortional Value is equal to 2/3 or 2:3
Step-by-step explanation:
4/6=2/3
6/9=2/3
8/12=2/3
10/15=2/3
14/21=2/3
(2x-3)(x+5)
Use foil to simplify, First multiply together the first terms of the pairs, then the outer terms, the middle terms, and finally the last terms. Then combine like terms.
2x^2+10x-3x-15 equals 2x^2+7x-15
