Answer:
The answer to the expression is 9
Step-by-step explanation:
B=4-a sorry if that’s not correct but I think it is
288 inches
Subtract 8 from 26 which gets you 18. Then, multiply 16 and 18 together and the product is 288.
2a+9 =4a-19
2a = 4a-19-9
2a-4a= -28
2a = -28
a = -14
Answer:



Step-by-step explanation:
Given




Required
Determine the measure of each angle
The angles in a triangle sum up t 180. i.e.

Since
, then 
can then be rewritten as:


Substitute values for B and C

Open Bracket

Collect Like Terms


Divide both sides by 23

To get the measure of each angle, substitute 11 for x in the expressions of B, C and D








