Answer:
40 degrees
Step-by-step explanation:
Angle ACO = 80 ( 180 - 100)
Angle CAO = 60 (180 - 120)
Angle AOC = 40 (180 - 80 - 60) (TOTAL DEGREES OF A TRIANGLE IS 180)
Since the exponent is negative, you move the decimal (2.0) to the left two spots leaving you with .02
Cosine is adjacent/hypotenuse
The adjacent side to angle F is 60, and the hypotenuse is 61
Therfore, C) 60/61 would be the correct choice
hope this helps:)
Using the following equation is how you translate degrees Fahrenheit to Kelvin:
Kelvin = (Fahrenheit + 459.67) * 5 / 9<span>
or you could use:
</span>
Kelvin = (Fahrenheit - 32) * 5 / 9 + 273.15<span> </span>
Differentiate both sides of the equation of the circle with respect to 
, treating 
as a function of :
This gives the slope of any line tangent to the circle at the point 
.
Rewriting the given line in slope-intercept form tells us its slope is
In order for this line to be tangent to the circle, it must intersect the circle at the point such that
In the equation of the circle, we have
If 
, then 
, so we omit this case.
If 
, then 
, as expected. Therefore 
is a tangent line to the circle 
at the point (1, -2).
