Neither of the graphs in the picture is a function
To be a function it needs to pass the vertical line test, which both of them fail.
The answer is 0.516%
Using the simple interest formula
Which is SI= (principal x rate x time)/100
Answer:
The closest amount paid is $23
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Step-by-step explanation:
Given


Amount = 10% of Marked down price
Required
Determine the amount paid
First, we calculate the marked down price P2:

Substitute values for Price and Mark down

Express percentage as decimal


Remove bracket


The payable amount is 10% off the marked down price,
This is calculated as:

Substitute $25.6 for P2

Express percentage as decimal



<em>The closest amount paid is $23</em>
Discriminant of a quadratic equation can be calculated as:
Discriminant = b² - 4ac
b = coefficient of x term = 2
a = coefficient of squared term = 1
c = constant = 7
So,
Discriminant = 4 - 4(1)(7) = -24
So, the correct answer to this question is option C