They are vertical angles, thus they are equal to each other:
5x + 12 = 6x - 10
22 = x
x = 22
Answer:

Step-by-step explanation:








Answer:
x∈(0,1], x is natural number.
Answer:
7.85 ft
Step-by-step explanation:
This question is asking you to find the circumference of the circle. To do this the equation is C=
D where C is circumference and D is diameter. So, C= 3.14* 2.5 which equals 7.85 ft.
Answer:
2
Step-by-step explanation:
(-7)^2 - 4*3 *(-2) = 49 + 24 >0
discriminant is positive so 2 real roots