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fespinoza019
21.11.2019 •
Mathematics
The options for the first blank are 45, 240, 270, and 315
the options for the second blank are 225, 315, 450, 630
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Ответ:
The solutions are 270° and 450°.
Step-by-step explanation:
Given:
So, the second and third quadrant angle to be calculated.
And,![cos\frac{x}{2}=225](/tpl/images/0383/6465/a67b9.png)
Therefore, the solutions are 270° and 450°.
Ответ:
To find the average rate of change of the function, take the change in y between x=1 and x=3 and divide by 2.
(36 - 20) / 2 = 16/2 = 8 miles / hour .
The domain of the function is the range of x for which y is a real number. We see in the chart provided that the bird travels 8 miles every hour.
How many hours will it take to travel 172 miles from the nest? The bird started at 12, so let's so how long it takes to travel 172 - 12 = 160 miles, moving at a rate of 8 miles/hour.
160 miles / 8mph = 20 hours
The domain of the function, the time range in which the bird travels 172 miles from the nest, will be 0 ≤ x ≤ 20