Simplify
- $$\frac { 3 x ^ { - 1 } + 9 y ^ { - 1 } } { 4 x ^ { - 2 } + 3 y ^ { - 2 } }$$

question 244

Multiple Choice

Simplify.
- $$\frac { 3 x ^ { - 1 } + 9 y ^ { - 1 } } { 4 x ^ { - 2 } + 3 y ^ { - 2 } }$$

• A) \(\frac { - 3 x y ^ { 2 } - 9 x ^ { 2 } y } { - 4 y ^ { 2 } + 3 x ^ { 2 } }\)
• B) \(\frac { 4 y ^ { 2 } + 3 x ^ { 2 } } { 3 x y ^ { 2 } + 9 x ^ { 2 } y }\)
• C) \(\frac { 3 x y ^ { 2 } + 9 x ^ { 2 } y } { 4 y ^ { 2 } + 3 x ^ { 2 } }\)
• D) \(\frac { 4 x ^ { 2 } + 3 y ^ { 2 } } { 3 x + 9 y }\)

Understand the mechanisms of blood typing, including antigens and antibodies present in different blood types.

Identify the effects of various conditions on hematocrit levels and erythrocyte production.

Recognize the physiological response of leukocytes to infections, including parasitic infections.

Describe the interaction between coagulation times and the health state of an individual.

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