What is the domain of the function f(x)=2/5 sqrt x
1 answer:
Answer:
Step-by-step explanation:
Think about what the square root is actually doing: it's telling you what number multiplied by itself will reset in the value. For example, the square root of 25 is 5, since 5 * 5 = 25.
Think about the square root of a negative number. What number multiplied by itself will result in a negative number? There is none, since a negative number times itself will result in a positive number. Therefore, you can only take the square root of positive numbers. You can also take the square root of 0, since 0 * 0 = 0.
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Answer:
146%
Step-by-step explanation:
If the percent change is positive, it is a percent increase.
If the percent change is negative, it is a percent decrease.
Your numbers are
old price = $0.92
new price = $2.26
Plug in the numbers in the formula above and evaluate the expression.
percent change = ($2.26 - $0.92)/($0.92) * 100%
percent change = ($1.34)/($0.92) * 100%
percent change = 1.4565 * 100%
percent change = 146%
Since the percent change is a positive number, it is a percent increase.
Answer: The percent increase is 146%.
Answer:
The correct answer is:
Option A: A 10x — 15000 ≥ 50000
Step-by-step explanation:
Given that the total cost of manufacturing by the company is $15000.
Let x be the number of gallons the company sells.
It is also mentioned that the company earns $10 on each gallon.
So the total profit will be the the difference of the selling cost of gallons and manufacturing cost
Mathematically,
Now it is mentioned that the profit should be at least 50000 dollars which means the profit can be minimally 50000 and also can be greater than it so
The number of gallons can be found by solving the obtained inequality.
Hence,
The correct answer is:
Option A: A 10x — 15000 ≥ 50000