<span>n = n0(1 - 0.08)^t
= n0(0.92)^t
Putting n = n0 / 2:
1 / 2 = 0.92^t
t = log(1 / 2) / log(0.92)
= 8.31 yr.</span><span>
</span>
Presumably, whatever is drawn from Urn I is independent of what is drawn from Urn II. This means

We have


so the probability of drawing red balls from both urns is 
Answer:
V = pi r^2 h
Step-by-step explanation:
The formula for the volume of a cylinder is given by
V = pi r^2 h where r is the radius and h is the height
Answer:
Wall of Jericho
Step-by-step explanation:
The Wall of Jericho was a Pre-Pottery Neolithic A (PPNA) defensive or flood protection wall suggested to date to approximately 8000 BC.[1] If interpreted as an "urban fortification", the Wall of Jericho is the oldest city wall discovered by archaeologists anywhere in the world.[2] It is built of undressed stones and is located at the archaeological mound known as Tell es-Sultan, in the city of Jericho on the West Bank.
The topic of this article is the unique Neolithic-age stone wall, the earliest one of its kind. Other walls, such as contemporary house walls, or later, Bronze and Iron Age city walls, are only mentioned for the sake of context.
Answer: Centroid
<u>Step-by-step explanation:</u>
Medians intersect at the CENTROID
Altitudes intersect at the Orthocenter
Perpendicular bisectors intersect at the Circumcenter
Angle bisectors intersect at the Incenter