The answer is: 4,8,6,5,2. Using the order of operations, which is PEMDAS, you can easily answer the question. Also, when finding the inverse of a function all you have to do is switch the places of x and y and then solve for y.
For those, the answers are in order
1st.) y = 4x + 7
2nd.) x = 4y + 7
3rd.) x - 7 = 4y
4th.) x - 7/4 = y
5th.) f ^-1(x) = x - 7/4
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Answer:
5x^2 + 4x - 7 = 0
i think it 330
Step-by-step explanation:
B
3 bags
you can buy three, 20 kg bags
one (1) 20kg bag = $12.8 (1)
three (3) 20 kg bags = $12.8 (3)
= $38
your balance 10 dollars