15 1.25
The relationship between the postage rate and the weight of a letter can be defined
by a piecewise function.
The graph shows the 2018 postage rates for using regular service to mail a letter.
1
postage (dollars)
0.75
05
0.25
os 1 1.5 2 253 25
weight (ounces)
Kiran and Mai wrote some rules to represent the postage function, but each of them made some errors.
Kiran
Mai
K(w)
0.50, 0 0.71, 13w < 2
0.92, 2 1.13, 3 < W<3.5
M(w) =
0.50, 0 < W< 1
0.71, 1 0.92, 2 1.13, 3 Identify the error in each person's work and write a corrected set of rules.

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.

at least two

step-by-step explanation:

d. you cannot tell because there are no values shown.