3. People who smoke are asked to halve the number of cigarettes consumed each day so that any effect on
pulse rate can be measured.
Is it a survey, observation or experiment method?

He amount of carbon-14 present in animal bones t years after the animal's death is given by p(t)equals=upper p 0 e superscript negative 0.00012097 tp0e−0.00012097t. how old is an ivory tusk that has lost 26% of its carbon-14?

If c(x) = 4x – 2 and d(x) = x2 + 5x, what is (cxd)(x)

If the table of the function contains exactly two potential turning points, one with an input value of –1, which statement best describes all possible values of m? m ≥ –12 –12 < m < 4 m ≤ 4 m ≥ 4 or m ≤ –12