Find x and y so the quadrilateral is a parallelogram.

We conclude that:

Step-by-step explanation:

Given

We know that the diagonals of a parallelogram bisect each other.

so

Given

so substituting RT = x, and TP = 5x-28

divide both sides by 4

Therefore, the value of x:

Similarly,

Given

so substituting QT = 5y, and TS = 2y+12

divide both sides by 3

Therefore, the value of y:

y = 4

Therefore, we conclude that:

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)

80 the answer is 80

step-by-step explanation: