Which of these systems of linear equations has an infinite number of solutions?
a) 5x-2y=10
10x-4y=12
b) 5x-2y=10
12x-4y=20
c) 5x-2y=10
10x-4y=20
d) 5x-2y=10
12x-4y=10

99

step-by-step explanation:

by definition, an arc subtended by a central angle of some given measure has the same measure. so .

the solution is the point

step-by-step explanation:

we have

> equation a

> equation b

adds equation a and equation b

substitute the value of x in equation b to find the value of y

the solution is the point