Answer:
Notation. The inverse of the function f is denoted by f -1 (if your browser doesn't support superscripts, that is looks like f with an exponent of -1) and is pronounced "f inverse". Although the inverse of a function looks like you're raising the function to the -1 power, it isn't.
Step-by-step explanation:
Answer:
The answer is 72
First you find E=180-130=50
Then you add all the angles and subtract from 360
102+100+50=252
360-252=108
then you do 180-108=72
Answer:
Part A) the direct variation equation that relates x and y is:

Part B) value of y = 75
Step-by-step explanation:
Part A)
We are given that y varies directly with x, and y=10 when x=-2 what direct variation equation relates x and y?
If x and y are directly related then:
y ∝ x or y=kx
where k is constant of proportionality.
Now, finding k:
y=10 and x=-2

So, value of k = -5
So, the direct variation equation that relates x and y is:

Part B)
What is the value of y when x = -15
the equation is:

Putting x = -15

So, value of y = 75
Keywords: Direct Variation
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