I think it is 0.52
hop this helps XD
Answer:
3/5
Step-by-step explanation:
Cos(B) = adjacent/hypotenuse
Cos(B) = 48/80 = 6/10
Cos(B) = 3/5 or 0.6
Answer:
y=-10/7x+4
Step-by-step explanation:
10x+7y=28
-10x -10x
7y=-10x+28
7/7y=-10x/7+28/7
y=-10/7x+4
We have,

Introduce variable
such that 
The sum
is therefore 
So,
(sadia's age)
(father's age)
Hope this helps :)