1.-( -13/5) + ( -3/5) = 2.- (+2/6) + (-5/4)=
3.-(-4/12) + (-2/6)- (- 2/3)=
4.- (- 4/12) + (+4/20)=
5.- (-6/2) + (-1/2) =

1.- (-8) + (+4)=
2.- (-3) + (-7 )=
3.- (-12) + (-5) =
4.- (-5) – ( -9 )=
5.- (+7) – ( - 4) =

1.- (-1/5) (-3/5)=
2.- (+2/6) (-5/6)=
3.-(-9/12) (-1/6)=
4.- (+1/3) (+4/6) (-1/3)=
5.- (-1/4) (+4/2) (- ¼)=

1.- (-1/5) -:- (-3/5)=
2.- (+2/6)-:- (-5/6)=
3.-(-9/12) -:- (-1/6)=
4.- (+1/3)-:- (+4/6) =
5.- (-1/4) -:- (+4/2) =

7 ft 6 in means 7 1/2, because 6 in is 1/2 of a foot. 7 ft 8 in means 7 2/3 because 8 in is 2/3 of a foot. 23/3 = 7 2/3. 15/2 = 7 1/2.

23/3   *   15/2   = 57 1/2

step-by-step explanation:

well we know there are 4 clubs in 52 cards so it’s replaced so it should be 3/51

step-by-step explanation:

2/3

step-by-step explanation:

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct