In each of the following sets, find the relations. state the domains and ranges. (i) c = { car, dog, cat, lorry, garden} d = { mammal, vehicle, reptile, food } r is defined as a relation from c to d by (c, d) e r if c is a type of d (ii) x = {2, 3, 5, 7} and y = {4, 6, 8, 10, 20 } r is defined as a relation from x to y by (x, y) r if x divides y (iii) r is a relation on x = {1, 2, 3, 4} defined by (x, y) e rif x2

answer: 21$

step-by-step explanation:

$42 / $14 = 3   (ratio 3: 1)

$7 x 3 = $21

the answer is 1 becuz if it were 1.0 that would rip apart the entire so ya. : )

~potato.

copyright potato 2019.

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct