A+b=20 c+d=30 calculati ac+ad+bc+bd= ?

600

Step-by-step explanation:

Note that the expansion of

(a + b)(c + d) = ac + ad + bc + bd, hence

ac + ad + bc + bd = 20 × 30 = 600

seems like d

step-by-step explanation:

the red lines denote the population of the bacteria after 35 hours. that would be 2,409.24. the y-intercept is the blue line which is 800 because that is the starting point. the equation used to make the graph is 800(1.032)^h, where h is the number of hours.

step-by-step explanation: