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3 years ago

7

Michael bought a new car. The sticker price was $6,100. He decided not to buy a warranty or any upgrades to the car. However, he

ended up paying much more. Why?

2 answers:

marin [14]3 years ago

5 0

I believe it is due to sales tax. Hope this helps!

kozerog [31]3 years ago

4 0

I believe it is due to sales tax.

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What characteristic of a parabola can be easily identified when the factored form of a quadratic is given?

Shkiper50 [21]

D) the x intercept as you let each bracket equal to 0 to find the x coordinate

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3 years ago

Express p in terms of q if

Irina-Kira [14]

$p=x^2+\dfrac{1}{x^2}\\\\p=\dfrac{x^4}{x^2}+\dfrac{1}{x^2}\\\\p=\dfrac{x^4+1}{x^2}\qquad(*)$

$q=x+\dfrac{1}{x}\\\\q=\dfrac{x^2}{x}+\dfrac{1}{x}\\\\q=\dfrac{x^2+1}{x}\qquad\text{square both sides}\\\\q^2=\left(\dfrac{x^2+1}{x}\right)^2\\\\q^2=\dfrac{(x^2+1)^2}{x^2}\qquad\text{use}\ \ (a+b)^2=a^2+2ab+b^2\\\\q^2=\dfrac{(x^2)^2+2(x^2)(1)+1^2}{x^2}\\\\q^2=\dfrac{x^4+2x^2+1}{x^2}\\\\q^2=\dfrac{x^4+1}{x^2}+\dfrac{2x^2}{x^2}\\\\q^2=\dfrac{x^4+1}{x^2}+2\qquad\text{subtract 2 from both sides}\\\\q^2-2=\dfrac{x^4+1}{x^2}\\\\\text{From (*) we have}\\\\\boxed{p=q^2-2}$

8 0

3 years ago

I need help please it’s due today I forgot how to do this :(

choli [55]

Answer:

Samantha payed 12.71$ for her purchase.

Step-by-step explanation:

I may have misunderstood the question, but it looks like you can use a calculator for this!

6.19 + 2.85 + 2.29 + 1.38 =

12.71

8 0

3 years ago

What is the answr to -5(b + 1) = 8

julsineya [31]

$- 5(b + 1) = 8 \\ - 5b - 5 = 8 \\ - 5b = 8 + 5 \\ - 5b = 13 \\ b = \frac{ - 13}{5}$

PLEASE GIVE BRAINLIEST

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2 years ago

Read 2 more answers

At a café, a cup of coffee costs $2.82. To use exact change, you must hold the number 2.82 in your head while sorting through yo

Stolb23 [73]

Answer:

Working memory

Step-by-step explanation:

Working memory is a system the brain uses for temporarily storing and managing the information required to carry out complex cognitive tasks. The central executive part of the prefrontal cortex at the front of the brain is responsible for working memory. It serves as a temporary store for short-term memory, where information is kept available while it is needed for current reasoning processes.

So to be successful in holding the number 2.82 in my head while sorting, one must keep the information maintained in short-term storage by using one's working memory.

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3 years ago