Answer:
last answer
Step-by-step explanation:
I factored it, but I might have done it wrong.
Perfect square is
a²+2ab+b²
so just take the square root of the end ones and add then double to get middle term
A.
m+10=10m, doubled is 20m
nope
B.
m+5=5m, doubled is 10m, yep
C.
m+2√15=fancy thing that won't get to 36m
D.
m+12=12m, doubled is 24m, yep
B and D
The answer is a. increase energy efficiency. This means that we now use less energy to do more thanks to many advances in technology. It could also be due to the use of alternative sources of power such as the sun or win. These new sources provide energy without causing pollution.
tbh google
(20/10 -1)*100% = 100% . . . . . the second number is 100% larger than the first
(10/20 -1)*100% = -50% . . . . . the first number is 50% smaller than the second
