Blood urea nitrogen (BUN) and creatinine tests can be used together to find the BUN-to-creatinine ratio (BUN:creatinine). A BUN-to-creatinine ratio can help your doctor check for problems, such as dehydration, that may cause abnormal BUN and creatinine levels.
Answer:
Why was the westward expansion important?
Explanation:
To Jefferson, westward expansion was the key to the nation's health: He believed that a republic depended on an independent, virtuous citizenry for its survival, and that independence and virtue went hand in hand with land ownership, especially the ownership of small farms.
Of course it's possible, because it means that sintheta=-2/5 which satisfies this -1<=sintheta<=1
