What do the up arrows mean? I may be able to help if you tell me.
(x - 4y)²
(x - 4y)(x - 4y)
x(x - 4y) - 4y(x - 4y)
x(x) - x(4y) - 4y(x) + 4y(4y)
x² - 4xy - 4xy + 16y²
x² - 8xy + 16y²
Answer:
50ºF
Step-by-step explanation:
(10°C × 9/5) + 32 = 50°F
Proportion women /men = 2/7 = x/490 7x= 2· 490 :7
X = 2·70 = 140
Answer:
I think it's 21. .........