Answer: a) 
Step-by-step explanation:
Since we have given that
a.) Find the inverse of f(x) and name it g(x).
Let f(x) = y
So, it becomes
Switching x to y , we get
b) . Use composition to show that f(x) and g(x) are inverses of each other.
Similarly,
so, both are inverses of each other.
c) Draw the graphs of f(x) and g(x) on the same coordinate plane.
As shown below in the graph , Since for inverse function we need an axis of symmetry i.e. y=x
And both f(x) and g(x) are symmetry to y=x.
∴ f(x) and g(x) are inverses of each other.
Answer:
eleven r plus seven s
Step-by-step explanation:
thats the written form
Answer:
No, he incorrectly rounded 1.25 to 2
Step-by-step explanation:
hope this helps :)
4.
The ratio is 3/4 for corresponding dimensions, the ratio of their surface areas is equal to the square of this ratio:
Simplify the exponent:
Cross multiply:
Divide 9 to both sides:
So the surface area of the second solid is 54 square meters.
The ratio is 3/4 for corresponding dimensions, the ratio of their volumes is equal to the cube of this ratio:
Simplify the exponent:
Cross multiply:
Divide 64 to both sides:
5.
A globe is a sphere, use the formula for the volume of a sphere:
The radius is half of the diameter, so the radius here is 40/2 = 20. Plug it in the formula, use 3.14 to approximate for Pi:
Simplify the exponent:
Multiply:
