is constructed by making arcs centered at a and b without changing the compass width. which equation is not necessarily true?

a.
pq = ab

b.
ap = pb

c.
aq = bq

d.
ar = rb

add 5 subtract 1

step-by-step explanation:

you need to add a picture

i dont know this one sorry

the formula for converting absorbance to transmittance goes as:

a = log (1/t)  a = 2 - log(%t)  10^a = 1/t  t = 10^-a  %t = 100(10^-a)

so at the given value of a,   a = 1.5

%t = 100(10^-1.5)

%t = 3.16%