Answer:
31.75 cm is equal to 12.5 in
Step-by-step explanation:
Patients who visit a clinic for the first time are asked to answer 15 questions about their health history.
Survey
A researcher randomly chooses 20 patients who come to the clinic with the flu and gives them an experimental drug. A randomly chosen group of 20 patients who come in with the flu receive a placebo.
Experiment
A doctor at the clinic asks patients who come in with a headache how many hours of sleep they get on a typical night.
Observational Study
Answer:
Step-by-step explanation:
Multiplying a number by 2 and then dividing by 3 is the same as multiplying by
, or,
0.666...
It looks like the boundaries of are the lines and , as well as the hyperbolas and . Naturally, the domain of integration is the set
By substituting and , so , we have
and
so that
Compute the Jacobian for this transformation and its determinant.
Then the area element under this change of variables is
and the integral transforms to
Now compute it.