The number of new calculators tested was 50 . . . 8 were bad and 42 were good.
The ratio of defective ones to new ones tested is 8:50 or 4:25 or 16% .
Answer:
12
Step-by-step explanation:
4hoursx3 temp increase=12
The second part = 1
the second part could be written sin²x.(1/sin²x), since cscx =1/sinx
hence 1 = 1
24
x
^2
+
54
x
+
21,
if you would like me to explain how to do it, I can in the comments.