Answer:

Step-by-step explanation:
We are required to represent the expression given in the standard form to the quadratic form
Given

let us square the given expression
f(x)=(x+3)(x+3)
open brackets

sum the similar terms

Answer:c
Step-by-step explanation:
Answer:
(2, -2)
Step-by-step explanation:
Given the equation
x - y = 4 ... 1
6x+y = 10 ...2
Add both expressions
x+6x = 4 + 10
7x = 14
x = 14/7
x = 2
Substitute x = 2 into equation 1;
From 1;
x - y = 4
2 - y = 4
y = 2-4
y = -2
Hence the solution to the system of equation is (2, -2)
The answer is approximately 11.18.
Answer:
77cm
Step-by-step explanation:
Area of a rectangle=L×B
So
7×11=77cm