Answer:
= 21i
Step-by-step explanation:
√-9 = 3i
= 7 . 3i
Multiply the numbers: 7 . 3 = 21
= 21i
Hope this helps!
-3.132 is the answer, you just had to multiply all of them one at a time (:
Answer:
(x,y)=(3,14)
Step-by-step explanation:
y-6x=-4 , y=-4+6x
y-2x=8, y=8+2x
(y=)-4+6x=8+2x
6x-2x=8+4
4x=12
x=12/4
x=3, then
y=-4+6*3=-4+18=14
(x,y)=(3,14)
Answer: 370 liters
Step-by-step explanation:
Given : Petrolyn motor oil is a combination of natural oil and synthetic oil. It contains 8 liters of natural oil for every 5 liters of synthetic oil.
Then , the amount of Petrolyn oil made by above composition =
Also, the amount of petrolyn oil is proportional to the amount of synthetic oil.
Let x be the amount of synthetic oil need ot make 962 liters of Petrolyn oil, the we have the following equation:-

Hence, In order to make 962 liters of Petrolyn oil, 370 liters of synthetic oil is needed .