The answer should be B 30 degrees
Answer:
Step-by-step explanation:
A copy machine can copy a report in 30 mins. When a second copy machine is used at the same time, the copying can be sone in 18 min. How long would it take the second copu machine to do the copying alone?
i have:
x=30
x+y=18
that would be -12..not right?
The prime factorization of 90 is 2*3^2*5
Sin A= 90* C, angle of A and C are suplementary
