Step-by-step explanation:
A. 2(10)-(-10)
20 -(-10) -------> (-)×(-) =(+)
20 + 10
30
B.29 + 1
30
Answer:
(c+d)
Step-by-step explanation:
Polygons are 2D shapes with straight sides. Quadrilaterals are polygons with four sides.
Trapezoids, rectangles, squares and parallelograms are all quadrilaterals as they have four sides.
Not all polygons are quadrilaterals.
Answer:
32P6
Step-by-step explanation:
nPr
n=32
r=6
Fraction: 8/1000 Decimal: 0.008