The following are reciprocals...
sin and csc
cos and sec
tan and cot
For chemistry you would need to get an 84.
For Spanish you would need to get an 82.
Best of luck
Answer: The answer is equivalent fractions.
Step-by-step explanation:
I hope this helped you! :D
x and y are the packs of organic and inorganic fertilizer, respectively.
pounds of nitrogen added = 2x + 6y = 120
pounds of potassium added = 3x + 2y = 54
eliminate the y terms. subtract the first equation from 3 times the second equation.
9x + 6y = 162
-2x - 6y = -120
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7x = 42
x = 6
y = 18