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Otrada [13]
3 years ago
12

a car dealer is caculating the list price for a used car. the dealer takes the initial price of 5the car and adds $259 dollars f

or cleaning and shipping the car to the dealer. the dealer then increases that price by 25% for the dealers profit. the price is again increased by 10% for the salesperson commision. if a used car is initially priced $10,000, what will be the list price for this car
Mathematics
1 answer:
Bas_tet [7]3 years ago
4 0

Add the 259 to the initial price:

10,000 + 259 = 10,259

Increase that price by 25%, so multiply by 1.25:

10259 x 1.25 = 12,823.75

The price is then increased by another 10%, multiply by 1.10:

12,823.75 x 1.10 = 14,106.13

List price = $14,106.13

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what is the polynomial function of lowest degree with leading coefficient of 1 and roots 2 and 1 + square root2
Marta_Voda [28]
If the roots to such a polynomial are 2 and 1+\sqrt2, then we can write it as

(x-2)(x-(1+\sqrt2))

courtesy of the fundamental theorem of algebra. Now expanding yields

(x-2)(x-1-\sqrt2)=x^2-2x-(1+\sqrt2)x+2(1+\sqrt2)=x^2-(3+\sqrt2)x+2+2\sqrt2

which would be the correct answer, but clearly this option is not listed. Which is silly, because none of the offered solutions are *the* polynomial of lowest degree and leading coefficient 1.

So this makes me think you're expected to increase the multiplicity of one of the given roots, or you're expected to pull another root out of thin air. Judging by the choices, I think it's the latter, and that you're somehow supposed to know to use 1-\sqrt2 as a root. In this case, that would make our polynomial

(x-2)(x-(1+\sqrt2))(x-(1-\sqrt2))=x^3-4x^2+3x+2

so that the answer is (probably) the third choice.

Whoever originally wrote this question should reevaluate their word choice...
5 0
3 years ago
Please help!!! Answer ASAP and show work!!!
n200080 [17]

Answer:

B and C. can you select more than one?

4 0
2 years ago
Can someone help me with this please
Pepsi [2]

Answer:

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6 0
3 years ago
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Stolb23 [73]
The answer order is
Bill
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3 0
3 years ago
Bill paid $2.49 for 5 pounds of rice. What could be cost of 9 pounds
Nadya [2.5K]

Answer:

\boxed{\sf Cost \ of \ 9 \ pounds \ rice =\$ 4.482}

Given:

5 pounds rice cost $2.49

To Find:

Cost of 9 pounds rice

Step-by-step explanation:

5 pounds rice cost $2.49

1 pound rice will cost $ \sf \frac{2.49}{5}

So,

9 pounds rice cost = 1 pound rice cost × 9

= $ \sf \frac{2.49}{5} \times 9

= $0.498 × 9

= $4.482

3 0
3 years ago
Read 2 more answers
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