To square means to multiply something by itself. A variable is a letter such as x. So a squared variable=x×x=x^2.
I hope that helped.
Answer:
It's a bit unclear with the table this way, but I count fifteen points, fifteen lines of the table, each a pair of numbers.
That's 15 degrees of freedom in the data. When modeling, each parameter in the model uses up one degree of freedom, so you'd use a smaller number of degrees of freedom when calculating t statistics, etc.
The transformation that shifts a function along the
is
, which shifts the function to the left, and
, which shifts the function to the right.
The transformation that shifts a function along the
is
, which shifts the function up, and
, which shifts the function down
Hence, the correct answer is D:
Answer:
Yes they are directly proportional quantities.
Step-by-step explanation:
We find the area of a square by;
A = length squared or (L)² , where 'L' stands for length and 'A' stands for area.
So Area = L²
Assume the length is a units and increase the length by 2 units
The initial area before increasing the length is a²
After increasing the length, the area becomes: (a + 2)² = a² + 4a + 4
Now we subtract the initial area from the final area and get;
(a² + 4a + 4) - a² = 4a + 4
So the new area increases by 4a + 4 units.
Hence, the area increases as the length increases implying that the area of a square is directly proportional to its length.
We denote this proportionality as;
A ∝ L
Answer:
5x2+11x−4
Step-by-step explanation:
=2x2+−4x+8+3x2+15x+−12
Combine Like Terms:
=2x2+−4x+8+3x2+15x+−12
=(2x2+3x2)+(−4x+15x)+(8+−12)
=5x2+11x+−4
have a great weekend <3
