Answer:
I feel that the answer is false.
Step-by-step explanation:
So, you already know that angle CBD is 68 degrees, and the complementary angle to angle CBD is angle CBA. These angles together make 180 degrees because segment DBA is a straight line consisting of angles CBD and CBA. 180-68(the angle you already know) is 112 degrees for angle CBA. Then you repeat this process to find the other angles
Answer:
![-180](https://tex.z-dn.net/?f=-180)
Step-by-step explanation:
![\left(2x+9\right)\left(x-4\right)\left(x+5\right)](https://tex.z-dn.net/?f=%5Cleft%282x%2B9%5Cright%29%5Cleft%28x-4%5Cright%29%5Cleft%28x%2B5%5Cright%29)
![\left(2x^2+x-36\right)\left(x+5\right)](https://tex.z-dn.net/?f=%5Cleft%282x%5E2%2Bx-36%5Cright%29%5Cleft%28x%2B5%5Cright%29)
![2x^3+11x^2-31x-180](https://tex.z-dn.net/?f=2x%5E3%2B11x%5E2-31x-180)
We need to find two numbers that multiply to 24 (last coefficient) and add to 10 (middle coefficient). Through trial and error, the two values are 6 and 4
6 + 4 = 10
6*4 = 24
So we can break up the 10ab into 6ab+4ab and then use factor by grouping
a^2 + 10ab + 24b^2
a^2 + 6ab + 4ab + 24b^2
(a^2+6ab) + (4ab+24b^2)
a(a+6b) + 4b(a+6b)
(a+4b)(a+6b)
Therefore, the original expression factors completely to (a+4b)(a+6b)
Answer:
I'm not a hundred percent sure how to answer this one, because you need the height to solve but the other two tick marks would also be twenty because all of the sides are equal to one another.