Aculture of 1.75×10^18 bacteria is in petri dish a. a culture of 6.25×10^15 bacteria is in petri dish b. how many times greater is the number of bacteria in petri dish a than petri dish b? enter your answer, in standard notation, in the box.

Dividing:-   (1.75 * 10^18) / (6.25 * 10^15)

=  (1.75 / 6.25) * (10^18 / 10^15)

= 0.28 * 10^3

= 280    Answer

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is

you didn't post any answer choices, so its not 100% clear what your teacher is looking for

however, log(15/7) is equivalent to log(15) - log(7)

i'm using the rule log(x/y) = log(x) - log(y)