3a + 5b + 6a + 4b
Add up all the a's: (3a + 6a) + 5b + 4b
9a + 5b + 4b
Add up all the b's: 9a + (5b + 4b)
9a + 9b
If you want to, you can factor it: 9 (a + b)
Answer:The value of the surface area (in square centimeters) of the cone is equal to the value of the volume (in cubic centimeters) of the cone. The formula for the surface area S of a cone is S=πr2+πrl, where r is the radius of the base and l is the slant height.
Step-by-step explanation:
Chucks age=C
Dave’s age=x
C=x-3
If the length of two segments is equal then the two segments are congruent.
If l(AB) = l(CD) then seg AB ≅ seg CD.
Two line segments to be congruent if and only if they have the same length.
Two shapes are congruent if they are exactly the same shape and exactly the same size. In congruent shapes, all corresponding sides will be the same length and all corresponding angle will be the same measure.
To know more about congruent here
brainly.com/question/19453095
#SPJ4