Answer:
x = 1 and x = -7
Step-by-step explanation:
Given that,
...(1)
and
y = 7 -x ....(2)
Put the value of y from equation (2) in (1)

So,
x = 1 and x = -7
Hence, the solution of the given equations is x = 1 and x = -7
Answer:
From <u>fourth</u> month onwards, the growth rate of
is greater than that of
.
Step-by-step explanation:
Given:
The growth rates of both bank accounts are given as:

Now, as per question, we need to find the value of 'x' when the value of
. Or,

Now, we can do this by checking the values of 'x' by hit and trial method.
Let
. The inequality becomes:

Let
. The inequality becomes:

Let
. The inequality becomes:

Let
. The inequality becomes:

Therefore, the value of 'x' for which
is 4.
So, from the fourth month onwards, the balance in
becomes greater than
.
The graphical solution is shown below to support the same.
From the graph, we can conclude that after the 'x' value equals 3.4, the graph of
lies above of
. Hence,
for 
Answer:
x² -3x - 54
Step-by-step explanation:
given roots of a polynomial are 9 and -6
this means that (x-9) and (x+6) are factors of the polynomial.
To get the polynomial with the least degree, simply multiply the two factors to obtain a quadratic expression (degree 2)
(x-9) (x+6)
= x² + 6x -9x -54
= x² -3x - 54
Answer:
Domain: -5, -3, -2, 1, 3
Step-by-step explanation:
Find all the points on the x-axis that line up with the line shown on the graph.
Answer:
the answer of 8÷30 is 0.266