Answer:lol it's -3
Step-by-step explanation: it's 3 because you had dirt 45.50 in your account and then you have to get books and those books will cost $3 more which means that you don't have that money since it indicates that in the problem which means that it would be -3 because you don't have the money so that's why I think it's negative 3.
Answer:

Step-by-step explanation:
The sine of an angle is defined as the ratio between the opposite side and the hypotenuse of a given right-angled triangle;
sin x = ( opposite / hypotenuse)
The opposite side to the angle x is thus 1 unit while the hypotenuse is 3 units. We need to determine the adjacent side to the angle x. We use the Pythagoras theorem since we are dealing with right-angled triangle;
The adjacent side would be;

The cosine of an angle is given as;
cos x = (adjacent side / hypotenuse)
Therefore, the cos x would be;

9) 83 (9
-81
___
2
Mixed fraction formula: Quotient Reminder/Dividend
Q = 9 R=2 D=9
So, 83/9 in mixed fraction is 9 2/9
HOPE THIS HELPS!!!!
13.42 is how long the wire is to the nearest hundredth of a foot
89 squared minus 39 squared and the answer you get is what you put into the radical