Which relationships describe the angle pair x° and 50º?

select each correct answer.

adjacent angles

vertical angles

supplementary angles

complementary angles

(A) and (D)

Step-by-step explanation:

From the given figure, it can be seen that ∠x and 50° form adjacent angle pair, thus using the straight line property, we have

∠x+50°+90°=180°

∠x+140°=180°

∠x=40°

Now, if we put x=40° and add with angle having measure 50°, it forms complementary angles.

Thus, The relationship between x and 50° is that they are adjacent angles and complementary angles.

10.416 meters per second

step-by-step explanation:

distance=1 00 meters

time= 9.6 seconds in decimal form or 9 3/5 as a mixed number

average speed= 100/9.6

=10.416 meters per second or 10 52/125 as a mixed number.

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.