Answer:
x = 4, y = 3
Step-by-step explanation:
2x - 3y = -1
- <u>2x + y = 11</u>
-4y = -12
y = 3
solve for 'x':
2x -3(3) = -1
2x - 9 = -1
2x = 8
x = 4
Answer:
The only grouping that is a true proportion is B.
Step-by-step explanation:
To tell if two are proportional, simply multiply the numerator from the first by the denominator of the second. Then multiply the denominator from the first and the numerator for the second. If the two products are the same, then it is proportional.
B) 4/12 = 6/18
4*18 = 12 * 6
72 = 72
Answer:
C and D
Step-by-step explanation:
i=√-1
n/4=x.5
since 2 is the remainder
n=2x
then i^n=i^2x
when x is even, i^n =1
when x is odd, i^n=-1
