Answer:
Step-by-step explanation:
-0.4(3i + 4i) - 0.3(-2i + 5j) + 0.2(- +
j)
-1.2i - 1.6j + 0.6i - 1.5j - i + 0.5j
Converting to fraction form;
<u>Solving the i part;</u>
=
<u>Solving the j part;</u>
j
So -0.4a - o.3b + 0.2d = -
The heights of 200 adults were recorded and divided into two categories. Which two way frequency table correctly shows the margi
nal frequencies?
2 answers:
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Answer:
The constraints are
and
Step-by-step explanation:
Let
x ----> represent the number of male birds
y ----> represent the number of female birds
we know that
The flock needs to have exactly three times more females than males to thrive
so
----> equation A
The zoo only has room for a maximum of 20 male birds
so
----> inequality B
we know that
The maximum number of male birds is 20
For x=20
substitute in the equation A
so
The maximum number of female birds is 60
so
----> inequality C
therefore
The constraints are
and