An exponential function has a graph that is a smooth curve; it either increases at an ever increasing rate or decreases at an ever increasing rate. The only graph that fits these characteristics is the first one.
A density curve is always on or above the horizontal axis. The area underneath a density curve is exactly 1. The area under a density curve and above any range of values is the relative frequency of all observations that fall in that range.
The number rule for this sequence is that each time the number goes up,
it does so by whatever the previous amount added was, multiplied by two.
So far we can see the sequence is +50, +25-, +500, +1000, so we assume
that next it will be +2000 and the next number in the sequence will
therefore be 22,000
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Now, notice the picture below
is really just one rectangle and a circle, well, half a circle or a semi-circle
so.... if you get the area of the whole rectangle, 16*19
and subtract, the area of half the circle, you end up with the shaded area
since, what you'd be leftover is, the rectangle, with a semi-circular hole, that was subtracted
now... let's say, you get an amount of hmmm [?]
ok, how much is that in percentage? well, 16*19 is 304
so, if we take 304 as the 100%, how much is [?] in percentage?
solve for "x"
Recall that one whole is 1, or in this case since the denominator is 4, then 4/4 is 1 whole, so the whole lawn is 4/4.