Amine extracts 2 metric tons of coal in an hour. the mine uses 1/4 ton of the extracted coal every hour to generate electricity for the mine and sells the rest. if t is the number of hours spent mining, which expression represents the amount of ore sold? how much ore can the mine sell after extracting ore for 12 hours?

The expression is 7/4 t. The amount of ore is 21 metric tons.

Step-by-step explanation:

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we know that

applying the law of sines

°

so

∠j=18°

∠k=29°

∠l=180-(18+29)=133°

the answer part a) is

the measure of angle k is  ≈29°

part b)  the measure of angle k could also be

(180-29)=151°

so

∠j=18°

∠k=151°

∠l=180-(18+151)=11°

the answer part b) is

the measure of angle k could also be 151°

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step-by-step explanation: