Question

Check my answers Please
I will fan and award a medal

Answer 1

11)

Answer 2

which comes out to (b-10)/(b-1) when simplified.

Answer 3

oh i see , i don't know how i did this wrong :( i must have factored wrong

Answer 4

quack ?

Answer 5

Next time, show your work like this so we can tell where the error was made.

12)
Simplify the following:
((2 t)/(5)-(3 t)/(3))/(t/2+t/2)

Combine t/2+t/2 into a single fraction.
t/2+t/2 = (t+t)/2:
((2 t)/5-(3 t)/(3))/((t+t)/2)

Add like terms in t+t.
t+t = 2 t:
((2 t)/5-(3 t)/(3))/(2 t/2)

Cancel common terms in the numerator and denominator of (2 t)/2.
(2 t)/2 = 2/2×t = t:
((2 t)/5-(3 t)/(3))/(t)

Divide 3 by 3.
3/3 = (3×1)/3 = 1:
((2 t)/5-t)/(t)

Put each term in (2 t)/5-t over the common denominator 5: (2 t)/5-t = (2 t)/5-(5 t)/5:
((2 t)/5-(5 t)/5)/(t)

Combine (2 t)/5-(5 t)/5 into a single fraction.
(2 t)/5-(5 t)/5 = (2 t-5 t)/5:
((2 t-5 t)/5)/(t)

Combine like terms in 2 t-5 t.
2 t-5 t = -3 t:
-3 t/(5 t)

Combine products of like terms.
(-3 t)/(5 t) = (-3 t^(1-1))/5:
(-3 t^(1-1))/5

Look for two terms that sum to zero.
1-1 = 0:
(-3 t^0)/5

Any nonzero expression to the zero power is one.
t^0 = 1:
Answer:(-3)/5

Answer 6

@DUDE..IM..A..DUCK Haha

Answer 7

Oh great I had this one right , Thank you @ybarrap