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Oksana_A [137]
3 years ago
6

Apply the markup or markdown to each item and then find the retail sale price of the following items. ​Round to two decimal plac

es. Question:
$2.99 picture frame; 100% markup
Mathematics
2 answers:
ryzh [129]3 years ago
6 0
5.98 because 100% is 2.99 then add them together
Black_prince [1.1K]3 years ago
4 0

Answer:

5.98

Step-by-step explanation:

2.99 * 1= 2.99

2.99+2.99= 5.98

First you had to multiply 2.99 by 1 because 100% in decimal is 1.

You get 2.99 and you add it to the original price.

And that is how you get 5.98

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Answer:

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2 years ago
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Susan made 75 pieces of peanut brittle to share equally with her friends. She put 4 pieces of peanut brittle in each bag. She ga
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Answer:

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Step-by-step explanation:

6 0
2 years ago
Are the ratios 14:18 and 7:9 equivalent
Pepsi [2]

Answer:

Yes

Step-by-step explanation:

14/18 equals 7/9

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3 years ago
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Write an equation perpendicular to the line 6x+12y=24 and passing through (4,0)
noname [10]
Y = 2x - 8 is perpendicular to 6x+12y=24 and passes through (4,0)
6 0
3 years ago
. Andrew made an error in determining the polynomial equation of smallest degree whose roots are 3, 2+2i
KIM [24]

Answer:

Error of Andrew: Made incorrect factors from the roots

Step-by-step explanation:

Roots of the polynomial are: 3, 2 + 2i, 2 - 2i. According to the factor theorem, if a is a root of the polynomial P(x), then (x - a) is  a factor of P(x). According to this definition:

(x - 3) , (x - (2 + 2i)) , (x - (2 - 2i)) are factors of the required polynomial.

Simplifying the brackets, we get:

(x - 3), (x - 2 - 2i), (x - 2 + 2i) are factors of the required polynomial.

This is the step where Andrew made the error. The factors will always be of the form (x - a) , not (x + a). Andrew wrote the complex factors in form of (x + a)  which resulted in the wrong answer.

So, the polynomial would be:

(x - 3)(x - 2 - 2i)(x - 2+2i)=0\\\\ (x-3)(x^{2}-2x+2xi-2x+4-4i-2xi+4i-4i^{2})=0\\\\ (x-3)(x^{2}-4x+4+4)=0\\\\ (x-3)(x^{2}-4x+8)=0\\\\ x^{3}-4x^{2}+8x-3x^{2}+12x-24=0\\\\ x^{3}-7x^{2}+20x-24=0

7 0
3 years ago
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