Step-by-step explanation:
survey a specific amount of students and ask then if they spend les that 2 hours a night of studying or 2 or more hours a night studying.
Answer: A=53.576 degrees
Step-by-step explanation:
Cos A= adjacent/hypt
Cos A= 19/32
Cos A= .59375
inverse of Cos A=.59375
A=53.576 degrees
Answer:

Step-by-step explanation:
Yuan earned $336.3457.
You are asked to round this number to the nearest hundredth, that is, so there are only two digits after the decimal.
$336.34|57
A rule in rounding numbers is: if the first figure to be dropped is 5 with any nonzero digits following it, then the last figure kept should be rounded up (increased by 1).
The number becomes $336.35.

It is 40 because 24/40= 0.6 and 18/30= 0.6 so yeah its 40