Which of the following identities is not a Pythagorean Identity?

The following describes a scientific investigation.    Please read the text and the answer the questions that follow.  A research scientist was studying lizards.  The scientist wanted to know if lizards would run faster or slower depending on the types of insects that they ate.  All the lizards would be the same species.  Each group of lizards received only one species of insect for all their meals.  The insects would be: crickets, mealworms, wax worms, and fruit flies.  The lizards would be fed in their housing, not while racing because you don’t want them to get sick.  The scientist made a lizard-sized racetrack which included little infrared light beams connected to a computer.  When the lizards ran down the track a computer would record their times when they went through the lights.  Which of the following would be the best hypothesis for this study?  

Two normal distribution graphs are normally distributed and if the widths and heights of both graphs are the same, but one graph (X) is to the left, and the other graph (Y) is to the right, then it means that 

A professor receives, on average, 24.7 e-mails from students the day before the midterm exam. To compute the probability of receiving at least 10 e-mails on such a day (24-hour time interval), he will use what type of probability distribution?

A 65 year-old male client is admitted to the ER with crushing sternal pain radiating to the left arm. The patient reports that the pain started an hour ago while watching television.   Client took 1 SL Nitroglycerin without relief,.  His wife drove him to the hospital. Now in the ER, the patient’s vital signs: Temp 98.8 F, HR 114, RR 24, BP 160/94, O2 SAT 89% Room air. Patient reports his sternal pain is an “8” on a scale 0-10.  Patient’s weight is 280 lbs (BMI 35). NKDA Diagnostic Test in ER ECG-  Sinus Tachycardia with t wave inversion.   Lab Results in ER: Cholesterol 250 mg/dL WBC 7,000/ mm3  (4,000-11,000 mm3) Platelets 425,000/mm3  (150,000- 450,000 mm3) Potassium 3.9 mEq/L  (3.5- 5.2 mEq/L) Magnesium 1.7 mEq/L : Reference Range  (1.5 – 2 mEq/L) Troponin 0.01 ng/ml : Reference Range  (0 – 0.04ng/ml) Creatine Kinase MB (CKMB) 10 IU/L : Reference Range  (5-25 IU/L) **The next morning the patient went for a PCI and he had a 75percent blockage and a cardiac stent was placed. Considering the patient’s diagnosis, and diagnostic tests/lab results, what classification of  medications/ treatments would the nurse expect to be ordered? Select all that apply

Nosotros [BLANK-1] (comer) en la cafetería a veces. ¿[BLANK-2] (comer) en la cafetería ustedes?

Rafael y Manuel [BLANK-1] (escribir) sus composiciones en el laboratorio. Cynthia y yo [BLANK-2] (escribir) nuestras composiciones en casa. 

uses carefully chosen and arranged language to express thoughts and _______________.

What does the acronym ROC stand for, as in a ROC graph?

According to the text, which is the easiest to understand and most widely used learning method in CDSSs?