Answer:
Step-by-step explanation:
5x/8 =7/2
10x=56
x=28/5
x=5.6
Answer:
I love algebra anyways
The ans is in the picture with the steps how i got it
(hope this helps can i plz have brainlist :D hehe)
Step-by-step explanation:
Answer: The answer is (a) sec A = 11 over 3.
Step-by-step explanation: Given that Cosine of an angle 'A' is 3 over 11,
i.e.,

And we need to find which one of the given four options is correct.
We have the following relations between cosine, secant and cosecant of an angle from trigonometry.

Therefore,

and

Thus, the correct option is (a) sec A = 11 over 3.
All the angles of the quadrilateral have to sum up to 360
So 65 + 80 + 100 = 245 and then 360 - 245 = 115
So its B. 115