Answer:
Step-by-step explanation:
(a - b)² = a² - 2ab + b²
a = 0.1x
b = 0.2y
(0.1x - 0.2y)²= (0.1x)² - 2*0.1x*0.2y + (0.2y)²
= (0.1)²x² - 0.04xy + (0.2)²y²
= 0.01x² - 0.04xy + 0.04y²
Answer:
c + d - d = c
Step-by-step explanation:
c = c
d - d = 0
c + 0 = c
c = c
Answer:
4 hours
Step-by-step explanation:
3+1=4