A lab technician is using this exponential model, ​A(t)= 100e​ -0.8t ​to measure cells in a petri dish over a period of hours. (2 pts each) a. After several hours, would there be ​more​ cells or ​fewer​ cells in the petri dish?​ ​(circle one)

b. How many cells would there be after 10 hours? ​(round to the nearest hundreths)​

What is a possible solutions of the x> 3?

Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.

Astudent must have an average on five test that is greater than it equal to 80% but less than 90% to receive a final grade of b. devon's greades on the first four test were 78% 62% 91% and 80% what range if grades on the fifth test would give him a b in the course? ( assuming the highest grade is 100%)