Answer:
Step-by-step explanation:
A) The diagonals of a parallelogram are perpendicular
B) The diagonals of a kite bisect each other
- Sometimes (one of the diagonals is bisected)
C) A polygon is a quadrilateral
- Sometimes (when it has 4 sides)
D) Thé diagonals of a rectangle are equal
- Always (definition of rectangle)
E) Thé opposite angles of a parallelogram are equal
- Always (definition of parallelogram)
F) A rhombus is a rectangle
- Never (when all interior angles are equal it becomes a square)
Answer:
(2a +b)·(13a^2 -5ab +b^2)
Step-by-step explanation:
The factorization of the difference of cubes is a standard form:
(p -q)^3 = (p -q)(p^2 +pq +q^2)
Here, you have ...
so the factorization is ...
(3a -(a -b))·((3a)^2 +(3a)(a -b) +(a -b)^2) . . . . substitute for p and q
= (2a +b)·(9a^2 +3a^2 -3ab +a^2 -2ab +b^2) . . . . simplify a bit
= (2a +b)·(13a^2 -5ab +b^2) . . . . . . collect terms
You would distribute, 300 times 80 is 2400 and -3x times 1x is -3x so the equation would be y=2400-3x
120° because 155-35=120 since IJZ is inside the IJK so you would have to subtract the ZJK from the IJZ.