Ascale drawing of a rectangular mural has the dimensions 2 inches by 3 inches. the scale is 0.5 inches : 5 feet. find the actual dimensions of the mural. then find the dimensions of another scale drawing with the scale 0.25 inches : 10 feet.

Part A) The actual dimensions of the mural are 20 ft by 30 ft

Part B) The dimensions on the new scale drawing are 0.50 in by 0.75 in

Step-by-step explanation:

Part A) we know that

A rectangular mural has the dimensions 2 inches by 3 inches

The scale of the drawing is

using proportions

Find out the dimensions of the actual mural

For 2 inches

For 3 inches

therefore

The actual dimensions of the mural are 20 ft by 30 ft

Part B) Find the dimensions of another scale drawing with the scale 0.25 inches : 10 feet.

To find out the dimensions in the new scale drawing, multiply the actual dimensions by the new scale

The new scale is

For 20 ft

For 30 ft

therefore

The dimensions on the new scale drawing are 0.50 in by 0.75 in

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.