F(x)=9x
f(X)=9(-2)
f(x)= -18
Answer:
The area of the shaded region is about 38.1 square centimeters.
Step-by-step explanation:
We want to find the area of the shaded region.
To do so, we can first find the area of the sector and then subtract the area of the triangle from the sector.
The given circle has a radius of 6 cm.
And the given sector has a central angle of 150°.
The area for a sector is given by the formula:

In this case, r = 6 and θ = 150°. Hence, the area of the sector is:

Now, we can find the area of the triangle. We can use an alternative formula:

Where a and b are the side lengths, and C is the angle between them.
Both side lengths of the triangle are the radii of the circle. So, both side lengths are 6.
And the angle C is 150°. Hence, the area of the triangle is:

The area of the shaded region is equivalent to the sector minus the triangle:

Therefore:

Use a calculator:

The area of the shaded region is about 38.1 square centimeters.
Answer:
The product of two numbers changes by 2% when the first number increases by 70%, while the second number decreases by 40%.
Step-by-step explanation:
Let first number be x and second number be y .
Then product of x and y = xy ......(1)
Given the first number increases by 70%, while the second number decreases by 40% this means,
x is increased by 70% that is
increased value of x = x + 0.7(x) = 1.7 x
Similarly y is decreases by 40% that is
decreased value of y = y - 0.4(y) = 0.6y
New product will be = (increased value of x )( decreased value of y)
= (1.7x)(0.6y)
=1.02xy
Changed Percentage = 
Substitute the values, we get,
Changed Percentage = 
Changed Percentage = 
Changed Percentage = 
Changed Percentage = 
Thus, the product of two numbers changes by 2% when the first number increases by 70%, while the second number decreases by 40%.
Answer:
edit: adjacent angles
Step-by-step explanation:
hope this helps