Answer:
60
Step-by-step explanation: You multiply 75 by 80 then divide it by 100.
Answer:
19
Step-by-step explanation:
when you multiply 19 by itself you get 361
There is just one value in the first quadrant where:
sin x = cos x =

The point is (

) and x=45°=π/4
Answer:
in number 1 I think D is wrong and in number 2 A is correct