Answer:
f(g(-4)) = 13.
g(f(-4)) = -3.
Step-by-step explanation:
g(-4) = (-4)^2 + 3(-4) - 1
= 3.
so f(g(-4))
= f(3)
= 2(3) + 7
= 13.
f(-4) = 2(-4) + 7
= -1.
so g (f(-4))
= g(-1)
= (-1)^2 - 3 - 1
= -3.
Answer:
4
Step-by-step explanation:
It's AoPS question
Answer: As a result of his company being able to sell a house of $300,000, John will earn a commission of $6,000.
When John sells a house, he gets a commission of 2% out of the selling price of that house.
If a house sells for $300,000 therefore, John will earn a commission of:
= Selling price of house x John's commission
= 300,000 x 2%
= $6,000
In conclusion, John will make a commission of $6,000.
Step-by-step explanation:
Answer:
5
Step-by-step explanation:
A device extracts 37 liters of water per day
Therefore the number of days it will take to extract 185 liters can be calculated as follows
= 185/37
= 5
Hence it would take 5 days