WILL GIVE BRAINLIEST!! Redshift is observed when:

1. A distant luminous object travels rapidly away from an observer.

2. A luminous object is stationary relative to an observer.

3. A distant luminous object travels rapidly towards an observer.

4. A luminous object is traveling alongside an observer.

1e+27

step-by-step explanation:

answer: translate the circles so they share a common center point and dilate circle y by a scale factor of 3.

nope lol

step-by-step explanation:

the circumference of a circle is, 10.676 cm.

step-by-step explanation:

the formula for circumference of a circle is given by:

where

c is the circumference of a circle and

d is the diameter of a circle.

given: diameter(d) = 3.4 cm and use

substitute these values in [1] we get;

cm

therefore, the circumference of a circle is, 10.676 cm