What type of quadrilateral is formed by the points A(0, 4), B(4, 0), C(0, -3), and D(-4, 0)?
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so the answer is:y=sin (∅)
The given population models for the trees is given as:
It is required to find which forest will have a greater number of trees after 20 years and by how many.
To do this substitute t=20 in the equations of the models:
Hence, forest A has a greater number of trees after 20 years.
Calculate the difference:
It follows that forest A has a greater number of trees than forest B by 43 trees.
After 20 years, forest A has a greater number of trees than forest B by 43 trees.
Answer : Focus (4,4) , directrix x=10
Given equation is
The given equation is in the form of
Where vertex is (h,k)
h = 7 and k = 4 so vertex is (7,4)
4p = -12 so p = -3
Focus is (h+p, k)
h=7, k=4 and p = -3
focus is (7-3, 4) that is (4,4)
now we find directrix
Directrix x= h-p
So x= 7-(-3)= 10
Focus (4,4) , directrix x=10