When you multiply a nonzero rational and an irrational number, the outcome is irrational. It's a pretty advanced proof, having to do with a contradiction theorem. For example, 2*e is irrational.
Okay, so what you need to figure out is that how many years in between 21 1/4 and 37 there are based on the amount the tree grows a year. So, 1 3/4 times 9 is 15.75, and this added to 21 1/4 is 37. This means that it will take the tree 9 years to grow from 21 1/4 ft to 37 ft.
Answer:
$1882.84
Step-by-step explanation:
Total cost = 109.25% = 109.25% x $1723.42 = $1882.84 (2dp)
Topic: Percentage
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2(3n-4)
Divide the whole equation by 2
