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Ivenika [448]
4 years ago
14

a store is offering a 20% discount off one item. you also have a coupon for 5$ off one item. Which composite function repressent

s the fina price if the coupon is applied before the discount
Mathematics
1 answer:
MAVERICK [17]4 years ago
5 0

Answer:

See below.

Step-by-step explanation:

If the original price is $p  then  final price is calculated as follows:

We start with p - 5 because the coupon was applied before the discount.

Final price = $( p - 5 ) - 0.2(p - 5)  

= p - 5 - 0.2p + 1

= $(0.8p - 4).

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Which polynomial function has a leading coefficient of 1 and roots (7 i) and (5 – i) with multiplicity 1? f(x) = (x 7)(x – i)(x
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It looks like you might have intended to say the roots are 7 + i and 5 - i, judging by the extra space between 7 and i.

The simplest polynomial with these characteristics would be

f(x) = (x - (7 + i)) (x - (5 - i))

but seeing as each of the options appears to be a quartic polynomial, I suspect f(x) is also supposed to have only real coefficients. In that case, we need to pair up any complex root with its conjugate to "complete" f(x). We end up with

f(x) = (x - (7 + i)) (x - (7 - i)) (x - (5 - i)) (x - (5 + i))

which appears to most closely resemble the third option. Upon expanding, we see f(x) does indeed have real coefficients:

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2 years ago
What is the equation in point slope form of the line passing through (0,5) and (-2,11)
IRISSAK [1]

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Answer:

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