A doctor suspects that one of her patients has a strep infection. A lab report shows that the patient’s white blood cell count is 12,000 cells per microliter. The normal range for the white blood cell count is between 4.5 billion and 10 billion cells per liter. Do the results indicate an infection? First, convert the lab result from cells per microliter to cells per liter. The lab result shows 12,000 cells in one microliter of the patient’s blood. How many cells are in one liter of the patient’s blood? (A liter contains 1,000,000 microliters.)

12,000

12,000,000

12,000,000,000

12,000,000,000,000

the answe i =−n+5

47

step-by-step explanation:

start with a line segment pq that we will copy. mark a point r that will be one endpoint of the new line segment. set the compasses' point on the point p of the line segment to be copied. adjust the compasses' width to the point q. the compasses' width is now equal to the length of the line segment pq.

step-by-step explanation:

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional