Answer:
0.05, 0.5, 0.507, 0.57, 0.577
Step-by-step explanation:
One
The sum of two rational numbers is always rational. sqrt(9) + sqrt(25) = 3 + 5 which is rational. sqrt(16/100) = 4/10 = 2/5 is also rational. 3/28 is rational as well.
Two
Those are irrational. sqrt(10) + pi = ???? You cannot reduce this to any kind of fraction. Two irrationals always give a rational.
Three
The irrational number controls the answer. 10 + sqrt(5) is irrational. The 10 is OK. It is raional, but sqrt(5) is not a rational number.
Total income minus income from plumbing gives us income from rent. Divide that by 12 to give us the monthly income from rent.
61700-4800 = 13700
13700/12 = 1,141.67 a month in rent.
The answer is C. Once you add the like terms x^2 and 4x^2 you get your answer.
If you are multiplying fractions it doesn't matter if there are different denominators because you multiply straight across.
