Answer:
x = 2 and y = 3
Step-by-step explanation:
We have
x+2y = 8 -----equation (i)
2x-y = 1 -----equation (ii)
Now,
x+2y = 8
or, x = 8-2y ------equation (iii)
Again,
2x-y = 1
or, 2x = 1+y
or, 2x-1 = y
Putting the value of 'x' from equation (iii)
or, 2(8-2y)-1 = y
or, 16-4y-1 = y
or, 16-1 = y+4y
or, 15 = 5y
or, y = 15/5
or, y = 3
Putting the value of 'y' in equation (iii)
x = 8-2y
or, x = 8-(2×3)
or, x = 8-6
or, x = 2
Therefore, x = 2 and y = 3.
Answer:
A∪B = { The Real numbers }
Step-by-step explanation:
Given:
Let A = {the Rationals} and B = {the Irrationals}.
Find
A∪B.
Solution :
AUB means collection all the element of A and all the element of B.
element of A = Rational number and
element of B = Irrational number
Real number : All the including rational and irrational numbers are called as real number.
∴ A∪B = { The Real numbers }
looks at all the denominators
2, 12 and 3, What is the LCM (least common multiple)? 12
times the whole hing by 12.
12( )
-12x + 6x = 67 + 12x + 20 - 24 now combine like terms
-6x = 63 + 12x
-12x -12x subtract 12x from both sides
-18x = 63
/-18 /-18
x = -3.5
What is the axis of symmetry for 3x^2 + 2x -1
x= -1/3