Answer:
To solve a triangle is to find the lengths of each of its sides and all its angles. The sine rule is used when we are given either a) two angles and one side, or b) two sides and a non-included angle. The cosine rule is used when we are given either a) three sides or b) two sides and the included angle.
Step-by-step explanation:
We just saw how to find an angle when we know three sides. It took quite a few steps, so it is easier to use the "direct" formula (which is just a rearrangement of the c2 = a2 + b2 − 2ab cos(C) formula). It can be in either of these forms:
cos(C) = a2 + b2 − c22ab
cos(A) = b2 + c2 − a22bc
cos(B) = c2 + a2 − b22ca
Answer:
Step-by-step explanation:
If a population of insects grows exponentially, then the equation represents this situation, where x is the number of weeks and y is the population.
When x=0, y=10, then
When x=1, y=30, then
When x=2, y=45, then
The function that represents situation is
Now find y when x=11:
Yes It is a unit rate because there are 2 units in 1 rate... or so I think
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