Answer:
E
Step-by-step explanation:
19) Amount of oil in = amount of oil in final product
.025(x) + .09(40-x) = .055(40) (x = 2.5% amt 40 - x = 9% amt)
x = 21.54 L of 2.5 % then 9% = 18.46 L
Answer:
125.66
Step-by-step explanation:
C = 2πr = 2·π·20 = 125.66371
A 180° rotation just means to switch the signs of x and y and then swap them.
So if you have (3,5) it would become (-5,-3)
Answer:
Step-by-step explanation:
lets eliminate the parenthesis,
-2x-2=2x-2
-4x=0
x=0