Find the measure of arc URT
1 answer:
Hello!
This question is about relating vertical angles and their arc lengths.
Vertical angles have equal angle measures, meaning that they will also have the same arc measure.
We know that arc QR and arc UT have equal angle measures because they are formed with vertical angles.
That means since we know the measure of the other two arcs, which will both be 125 since they are formed with vertical angles, we can solve for the two unknown arc lengths.
A circle is 360 degrees, meaning that we can make the following equation,
Since QR = UT
Now, we can solve for arc URT using all the arc measures we have.
Hope this helps!
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Answer:
79. [7, 12], [1, 6]
80. The total revenue in the month of May is $11,575
81. The total revenue in the month of November is $4,630
82. Values obtained from the model and actual values are almost the same, so the given model is precise.
Step-by-step explanation:
79.
The domain of a function is the set of x-values that we are allowed to plug into our function.
The graph below represents f(x),
the graph that the domain of the first part of the function is [7,12]. The domain of the second part of the function is [1,6]. The solution is:
80.
1 ≤ 5 ≤ 6, so we'll plug the value 5 in the function f(x) = 0.505x² - 1.47x + 6.3
f(x) = y = (0.505)(5)² - 1.47(5) + 6.3
f(x) = y = (0.505)(25) - 7.35 + 6.3
f(x) = y = 12.625 - 1.05
f(x) = y = 11.575
For x=5 which represents 5th month May, we got y=11.575
Therefore, the total revenue in the month of May is 11.575 thousands dollars, ie 11,575 dollars.
81.
7 ≤ 11 ≤ 12, so we'll plug the value 11 in the function f(x) = -1.97x + 26.3
f(x) = − 1.97(11) + 26.3
= − 21.67 + 26.3
= 4.630.
For x=11 which represents 11th month November, we got y=4.630 Therefore, the total revenue in the month of November is 4.630 thousands dollars, 4,630 dollars.
82.
Values obtained from the model are y=11.575 (x=5) and y=4.630 (x=11). Actual data values are y=11.5 (x=5) and y=4.4 (x=11)
By comparing these values, we can conclude that the model is precise, because these values are almost the same.
Learn more about Piecewise Functions here: brainly.com/question/13882670
