One of the radioactive isotopes used in chemical and medical research is iodine-125, which has a half-life of 61 days. how long
1 answer:
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Step-by-step explanation:
B is the answer
area of rectangle =B×w
The quadrilateral ABCD, with vertices <span>A(-2,3), B(9,3), C(5,6) and D(2, 6), is a trapezoid.
By definition, a trapezoid is a quadrilateral which has two parallel sides (These are called "bases"), but the other sides are not parallels. </span>
By definition, a trapezoid is a quadrilateral which has two parallel sides (These are called "bases"), but the other sides are not parallels. </span>