Answer:
Therefore the value of a is 3.78.
Step-by-step explanation:
Indices Rule:
Given that,
(a,b) satisfies the two equations
.........(1)
and
.........(2)
From equation (1) we get
Squaring both sides
......(3)
Divide equation (3) by (2) we get
Now plug the value of b in equation (1)
Therefore the value of a is 3.78.
Answer:
x = 5, y = 15
Step-by-step explanation:
Use substitution to solve the system of equations.
We'll replace y in x + y = 20 with 3x, since y = 3x.
x + 3x = 20
Combine like terms
4x = 20
Divide by 4 on both sides
x = 5
Now to solve for y (don't forget!)
We'll plug x = 5 back into one of the original equations
y = 3(5) = 15
Check first equation:
15 = 3(5)
15 = 15
Check second equation:
5 + 15 = 20
20 = 20
Its a <span>Because if you score this polynomial P, you have P (x) = y and the root of a polynomial is defined by P (x) = 0 and the only point satisfying this condition in your table is A (3.0)</span>