If x+y=45°, prove that:
(cotx + 1) (coty + 1)/cotx. coty=2

Which shows a correct order of steps in the scientific method? develop a hypothesis, analyze data, draw conclusions, make observations develop a hypothesis, analyze data, make observations, draw conclusions make observations, develop a hypothesis, analyze data, draw conclusions make observations, draw conclusions, develop a hypothesis, analyze data.

Taking a foil acid supplement during childhood can prevent illness

What economic effects might result from the depletion of groundwater supplies from the ogallala aquifer? need to know asap