What is the value of x?

a. -9
b. -10
c. 10
d. -12

a² + b²= c²

24² + 7² = c²

c= 25

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,

the answer to your question is c.)   volcanoes built the mountains and earthquakes tore them down.

step-by-step explanation: