Answer:
The sum of two irrational numbers, in some cases, will be irrational. However, if the irrational parts of the numbers have a zero sum (cancel each other out), the sum will be rational.
A) 6a=5b so a=5/6*b a/b=5/6
b) 6a=5b so 6/5*a=b b/a=6/5
c) a/b=5/6 so (a/b)*(2/7)=2a/7b=(2/7)(5/6)=(5/21)
d) 6a=5b so b=6a/5 Thus (a+b)/b=(a+6a/5)/(6a/5)=(11a/5)/(6a/5)=11/6
e) 6a=5b so a=5b/6 Thus (a+b)/(5a)=(5b/6+b)/(5*5b/6)=(11b/6)/(25b/6)=11/25
f) (3a+3b)/(a+b)=3=3/1
Note, I wasn't quite sure what you meant by \frac
Answer:
the probability is 1/6, or 16.6%
Area of a triangle is equal to 0.5 multiplied by perpendicular height multiplied by base
Which is 0.5*3*4
Which is 6
6^2 + 15
6^2 = 6 x 6 = 36
36 + 15 = 51
51 is your answer
hope this helps