A. 86
B. 65
C. 130
D. 58
find the value of c

b) 65°

Step-by-step explanation:

triangles always equal 180°

from the given information, these two triangles appear to be congruent. therefore, the angle that is 29° in the left triangle should apply to the triangle on the right.

so 29° + 86° = 155

180 - 155 = 65

the missing angle is 65°

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step-by-step explanation:

option 3 . (5x + 1) - (-10x + 6)

step-by-step explanation:

option 1 :

(4x + 3) + (-9x + 4)

or 4x+3 -9x + 4

or -5x + 7

option 2

(x - 2) - (6x - 9)

or x-2-6x + 9

or -5x + 7

option 3

(5x+ + 6)

or 5x + 1 + 10x -6

or 15x -5

option 4

-4x+2x+7-3x

-7x + 2x + 7

-5x + 7

hence only option 3 did   not satisfy the given simplify expression.