Answer:
Step-by-step explanation:
I think your question missed key information, allow me to add in and hope it will fit the orginal one
<em>For the graph below, what should the domain be so that the function is at least 200? graph of y equals minus 2 times the square of x plus 30 times x plus 200
</em>
My answer:
Given the above information, we have:
To make the function is at least 200, it means that:
≥ 200
<=> ≥ 0
<=> x(-2x+30) ≥ 0
This is the product of two numbers hence would be positive only if either both are positive or both are negative
x ≥ 0 and (-2x+30) ≥ 0
<=> 0 ≤ x ≤ 15
Then we get
This is inconsistent as a value cannot be less than 0 and greater than 15
=> our correct answer is
Hope it will find you well.
The answer is no relationship (edit)
Answer:
345.412
Step-by-step explanation:
You can do a proportion: 75/15 = x/100
you then do 100x75 and the divide by 15 and get 500.
15% of $500 is $75 so the sale price would be $425 I believe.
Find the common denominator between 1/5 and 2/3. Which is 13/15.<--- i added it already. Then find 13/15 out of $195