HURRY PLEASE The number of bacteria in a culture quadruples every hour. There were
65,536 bacteria in the culture at 8:00 A. M. The expression 65,536 4h models
the number of bacteria in the culture h hours after 8:00 A. M.

a. What is the value of the expression for h= -4?

b. What does the value of the expression in part (a) represent

it represents the numbers of bacteria 4 hours before 8:00 which is 65536

Step-by-step explanation:

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.