Which proportion could be used to find the length of side b?
2 answers:
Answer:
A)
Step-by-step explanation:
In order to use the Law of Sines, we must have a known angle and the known side opposite it.
The only side measure we have is that of AB, which is 6.2. The angle opposite this is ∠C, which we do not have the measurement of.
We do have the measurement of ∠A and ∠B; we can use these to find the measure of ∠C. We know that the sum of the measures of the angles in a triangle is 180°; this means
m∠C = 180-(72+85) = 180-157 = 23°
This makes the first ratio in the Law of Sines
We are trying to find the measure of b. This means we use the angle opposite b, ∠B; m∠B = 85°. This gives us the ratio
Together, this gives us the proportion
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Answer:
The correct option is the last one.
Step-by-step explanation:
To transform the graph of into
the following steps are fulfilled:
1) Move the graph 2 units to the right:
Let then
Notice that the cut point has been moved to x = 2.
2) Reflect on the x axis:
To reflect a graph on the x-axis we do Then
3) Stretch according to factor 2.
For this we do
Then we have
4) Move up the graph in two units:
We do
Then
These steps coincide with those listed in the last option. Therefore the correct option is the last one.
"Translate 2 units on the right, reflect on the x-axis, stretch according to the factor 2 and translate 2 units"