Answer:
A system of linear equations usually has a single solution, but sometimes it can have no solution (parallel lines) or infinite solutions (same line).
Step-by-step explanation:
Answer:
a1) The model is a = 15/b
a2) When a = 10, b = 1.5
b) The polynomial function in standard form is
Step-by-step explanation:
a1) Since a and b varies inversely and a = 9, b = 5/3. First find the constant of proportionality.
The function that models the inverse variation is :
a = 15/b............(1)
a2) When a = 10, find b.
Substituting the value of a into equation (1)
10 = 15/b
b = 15/10
b = 1.5
b) Find the polynomial function with zeroes 1, 2, -2,3
The factors of the polynomials are x -1, x - 2, x + 2, x - 3.
The polynomial becomes:
Your answer should be (5, 1). But im not sure what your asking so I may be wrong.
Answer:
40
Step-by-step explanation:
i looked it up
1 ) 3a + b - 4b + 5a
= Solution,
= 3a + 5a +b - 4b
= 8a - 3b
2 ) x + 10x + 2y - 8
= Solution,
= x + 10x + 2y - 8
= 11x + 2y - 8
3 ) 10x² - 4 - 2x²+ x ²
= Solution,
= 10x² - 2x² + x ² - 4
= 9 x² - 4
4 ) 3b + a - b + 2a
= Solution,
= 3b - b + a + 2a
= 2b + 3a
5 ) 6y³ - y³- 2x² + x²
= Solution,
= 6y³ - y³ - 2x² + x²
= 5y³ - x²
6 ) -2y + 2 + 3y + 1
= Solution,
= - 2y + 3y +2 +1
= y + 3
7 ) 1 + 3x + 4x²- 5x + 8
= Solution,
= 1 + 8 + 3x - 5x + 4x²
= 9 - 2x + 4x²
8 ) 12 x + 3y + 6x + y
= Solution,
= 12x + 6x + 3y + y
= 18x + 4y
9 ) - 4a³ + 1 + a³ + 7a²
= Solution,
= -4a³ + a³ + 1 + 7a²
= 3a³ + 1 + 7a²
10 ) -2 + 35b - 8b - 2b
= Solution,
= -2 + 27b - 2b
= -2 + 25b
11) - 2b + 3ab + a + 9ab
= Solution,
=- 2b + 3ab + 9ab + a
= - 2b + 12ab + a
12 ) - x³ + 2x + 2x³ - x + x²
= Solution,
= - x³ + 2x³ + 2x - x + x²
= x³ + x + x²
~Eveloyane~