Please help i’ll give brainliest

option c is correct

ABC is an isosceles triangle with base angle b and c angle b is equals to angle c E is equals to 57 and angle A + angle b + angle c is equals to 180 degree

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)

cross multiplying, we get :

⇒ (3) × (5) = (9) × (x)

⇒ 15 = 9x