There are no close answers, because you decided
not to list the choices at all.
The area of a circle is (pi) x (radius²) .
So 80 = (pi) (radius²)
Divide each side by pi : Radius² = (80/pi)
Take the square root
of each side: Radius = √ (80/pi)
= 5.0463 cm (rounded)
The answer to your question is x=9
The formula to find the slope of a line is m=(y2-y1)/(x2-x1). In this question: x1=3, x2=2, y1=5, and y2=1. Plug in and solve:
(1-5)/(2-3)=-4/-1=4=m
Slope-intercept form follows the format: y=mx+b, where m is the slope and b is the y-intercept. We calculated m to be 4, so the equation reads:
y=4x+b
To solve for b, you can select one of the ordered pairs (we'll use (2,1)), plug them in for x and y, and solve for b:
1=4(2)+b
1=8+b
-7=b
The equation is y=4x-7.
Hope this helps!!
Check the picture below.
make sure your calculator is in Degree mode.
Answer:
F(x) and g(x) are not inverse functions.
Step-by-step explanation:
In order to calculate the inverse function of a function, we have to isolate X and after that, we change the variables.
As our function f(x) is a exponentian function, we can apply logarithm with base 10 (log) in both sides in order to isolate X. Remember that log10=1.
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Now we change the variables.
F(x) and g(x) are not inverse functions.