Answer:
321.4in
Step-by-step explanation:
Answer:
never
Step-by-step explanation:
let k be the scale ratio of two bodies then according to the question
k = a/b -- (1)
let Sa be the surface area of body A and Sb be the surface area of body B , then
according to the relation of scale factor and surface areas

from the above equation ,

as k = a/b from (1)
therefore
hence the ratio of their surface area is 
Answer:
3
Step-by-step explanation:
because there are only three pictures
Answer:
-18
Step-by-step explanation:
Left Hand Side = -2(7a + 9b) = -14a - 18b
Comparing it with Right Hand Side, ? = -18
35 minutes yes tag it’s let me know if I’m wrong