Answer:
x=91, y=91, z=39
Step-by-step explanation:
the angles add up to 180 so find the difference ex. 51+38=89, 180-89=91 so x is 91
Answer:
16
Step-by-step explanation:
the diagonals intersect in the center...
5x2 - 2y2 Answer:
Step-by-step explanation:
3.1 Factoring: 5x2-2y2
Theory : A difference of two perfect squares, A2 - B2 can be factored into (A+B) • (A-B)
Proof : (A+B) • (A-B) =
A2 - AB + BA - B2 =
A2 - AB + AB - B2 =
A2 - B2
Note : AB = BA is the commutative property of multiplication.
Note : - AB + AB equals zero and is therefore eliminated from the expression.
Check : 5 is not a square !!
Ruling : Binomial can not be factored as the
difference of two perfect squares
Answer:
20
Step-by-step explanation:
60% is 3/5 as a fraction
so i divided 12 by 3 and got 4
to find the whole u times 4 by 5 equals 20