To determine the number of trout in a lake, a conservationist catches 84 trout, tags them and throws them back into the lake. Later, 40 trout are caught; 10 of them are tagged. How many trout would the conservationist expect to be in the lake?

The average human heart beats 1.15 \cdot 10^51.15⋅10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per day. there are 3.65 \cdot 10^23.65⋅10 2 3, point, 65, dot, 10, start superscript, 2, end superscript days in one year.how many times does the heart beat in one year? write your answer in scientific notation, and round to one decimal place.

The fraction 7/9 is equivalent to a percent that is greater than 100%. truefalse

How to find the exponential function y=ca^x, with points (1,2) and (2,1)