The second one is the correct answer
Answer:
2.61799???
try calculating the equations and see which one gets you to 2.61799!!
Step-by-step explanation:
30=2*3*5 and 35=5*7, then the <span>least common multiple is 2*3*5*7=210 minutes. This means that 7 20-minutes sessions with 10-minutes breaks and 6 25-minutes sessions with 10-minutes breaks will end together after 210 passed minutes and at 11:30 A.M. all sessions will begin at the same time.</span>
If I rounded 213.422 then it would be 213.4. Why? Because if you look at the 2 numbers on the right side of the decimal point, which would be 42, those r the only 2 numbers you have to round.. so if it was 45 or higher then the number would change to 50, if not then it would just round to 40. At the end of the problem you usually get rid of the rest of the numbers including 0.
So basically: If I round 213.(42)2, it equals 213.(40)
If I round 213.(45)2, it equals 213.(50)
-Always remember that the other #'s disappear-
Answer:
39 degrees
Step-by-step explanation:
The sum of angle in the triangle ABC is a80 degrees
m<ACB + <BAC + <ABC =1 80
90 + <BAC + 51 = 180
141 + m<BAC = 180
m<BAC = 180-141
m<BAC = 39 degrees
Hence the measure of m<BAC is 39 degrees