Answer:
I am sry but I don't know...u could search in g o o gle
Answer:
x=3.5
Step-by-step explanation:
2.8/4=x/5
cross multiply
2.8(5)=4x
14=4x
x=14÷4
x=3.5
Answer:

Step-by-step explanation:
We know that:

And we want to find:

Remember that there is a trigonometric identity that relates the
function with the
function

Then if
this means that:

Finally:

Step-by-step explanation:
a/2+5>4
a=4
4 divided by 2 = 2
2+5=7
7>4