Answer:
x=7
Step-by-step explanation:
Answer:
B. a (n) = -3n + 13
Step-by-step explanation:
Given arithmetic sequence is: 10, 7, 4, 1, -2, ...
Here a = 10, d = 7 - 10 = - 3

Answer:
Option (A)
Step-by-step explanation:
By applying the theorem angle theorem in the given triangle,
Sum of exterior angle of a triangle is equal to the sum of opposite interior angles of the triangle.
Therefore, 130° = y° + y°
130° = 2y°
y = 
y = 65°
Therefore, measure of interior angles 'y' of the given triangle will be 65°.
Option (A) will be the answer.
I'd go with the subtraction property of equality:
a = b + c precisely when a - b = c