goku4420
21.01.2021 •
Mathematics
Dan builds and sell birdhouses. The table shows his earnings
Number of
Birdhouses Sold
Earnings (in dollars)
5
15
40
120
200
25
?
320
55
440
Using the table, find the value of the missing number.
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Ответ:
x = 64.1 degrees
Step-by-step explanation:
Since this is a right triangle, we can use trig functions
cos theta = adj/ hypotenuse
cos x = 7/16
Take the inverse cos of each side
cos ^-1 cos x = cos ^-1 ( 7/16)
x = cos ^-1 ( 7/16)
x =64.05552023
To the nearest tenth
x = 64.1 degrees