Simplify each expression by combining like terms.
8x + 3 - 5x - 9

Helpp

3x-6

Step-by-step explanation:

8x+3-5x-9 is the same as (8x-5x)+(3-9). When we combine like terms with coefficients, we just either add or subtract them. So 8x-5x=3x because 8-5=3.

3-9 is just -6, so the simplified expression is 3x-6

the sum of the areas of the two shaded sectors

step-by-step explanation:

see the attached figure to better understand the problem

we know that

the area of a circle is equal to

where

r is the radius of the circle

in this problem we have

substitute

remember that

subtends the complete circle of area equal to

so

by proportion

find the area of the two shaded sectors