Answer:
Please see attached image and all steps below for both parts
Step-by-step explanation:
Task 1
The following system of equations includes a linear equation and a quadratic one:

it can be solved by using substitution in the second equation of the variable "y" by the linear expression of the first equation:

and this product of two factors will e zero when either factor is zero, that is: when x = 0, or when x = 9 [to make zero the binomial(x - 9)]
There are two solutions: x = 0 and x = 9.
When we graph both expressions in the system, we see that the line intercepts the parabola at the points (0, 2) and (9, 11). See attached image.
Task 2
Part 1:
Let's pick 30 as a number larger than 25. 30 can be written as 40 - 10
So we can use:

to calculate its square.
Part 2:
let's choose a=9 and b=10 so we use:

Answer:
Answer is on the pic
Step-by-step explanation:
I hope it's helpful!
Answer:
cos(49) = x/50
Step-by-step explanation:
(The answer to the equation is 32.8)
Answer: 1, 7, 1, 7, 1.
Step-by-step explanation:
The given function :
and f(1) = 1 for n ≥ 1
We put value of n=1,2,3,4 , we get
For n=1 , 
For n=2 , 
For n=3 , 
For n=4 , 
Hence, the first five terms of the given sequence are 1, 7, 1, 7, 1.
Answer:
Pair 1.
Step-by-step explanation:
On pair 1, shape A can go into shape B with a rotation.
Pair 2 would be a translation.
Pair 3 would be a reflection across the x-axis.
Pair 4 would be a reflection across the y-axis.