Edmundo wrote the expression 42 -5.23. What is the value of this expression?

Carson has only $20 bills and $10 bill in her wallet. the total value of the bills is $50. she has 1 more $20 bill than $10 bills. how many each kind of bill does carson have? a. one $20 and two $10 bills b. two $20 bills and one $10 bill c. one $20 bills and three $10 bills d. two $20 bills and two $10 bills

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.

Which expression gives the exact value of x?