IV. Activity 1: Let's Practice! Directions: Write the word SYS if the set of equations illustrates systems of linear equations in two
variables and TEM if not. Write your answer on the space provided.
3x – 2y = 7
1.
15x + y = 1
$2x - y> -2
2. lx - 2y = 1
4x + 7y = 3
3. 12x - 8y = -1
x2 - 3y = 2
ex
- 9y = 3
x- 70
{$
4. lx-
5. Ly = 5​

Demonstrate the proof of your new polynomial identity through an algebraic proof and a numerical proof in an engaging way! make it so the whole world wants to purchase your polynomial identity and can't imagine living without it! you must: label and display your new polynomial identity prove that it is true through an algebraic proof, identifying each step demonstrate that your polynomial identity works on numerical relationships create your own using the columns below. see what happens when different binomials or trinomials are combined. square one factor from column a and add it to one factor from column b to develop your own identity. column a column b (x − y) (x2 + 2xy + y2) (x + y) (x2 − 2xy + y2) (y + x) (ax + b) (y − x) (cy + d)

Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?

What is the geometric mean of 3 and 7? a) square root of 21 b) 2 square root of 6 c) 2 square root of 7 d) 21