Which term of the series 5 + 9 + 13 + ... is 85?
Find it.​

Which of the following graphs represents the function f(x) = 2^x

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.

State one method by which you can recognize a perfect square trinomial.