Select all the correct answers.
the table gives the numbers of teachers and students in grades 6 to 8 at earhart middle school.
grade teachers students
6 1 25
7 2 50
8 3 75
which teacher-to-student ratio maintains the proportional relationship described in the table?
teachers students
5 125
teachers students
4 120
teachers students
4 100
teachers students
6 130
teachers students
7 125

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

i think is g(1)=-1.

hope that i can

d. it is a convex pentagon because it has five sides and none of the sides would extend into the inside of the polygon.

step-by-step explanation:

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,