A car travels a distance of d km in t hours. The formula that relates d to tis d = kt. What kind of variation is it?​

Direct Variation

Step-by-step explanation:

Given: A car travels at a distance of km. The formula that relates to is

To find: kind of variation

Solution:

The formula that relates to is

Here, is a constant of proportionality.

Constant of proportionality is also called as constant of variation.

varies directly as .

Therefore, this is a direct variation.

5 pm

step-by-step explanation:

the answer is: d) o, f, and kr.

atomic radius of bromine (br) is 114 pm.

atomic radius of oxygen (o) is 73 pm.

atomic radius of fluorine (f) is 72 pm.

atomic radius of krypron (kr) is 112 pm.

the atomic radius of a chemical element is a measure of the size of its atom.

the atomic radius varies with increasing atomic number, but usually increases because of increasing of number of electrons.

the atomic radius decreases across the periods because an increasing number of protons, because greater attraction between the protons and electrons.