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2 years ago

7

Rosalie bought 4 books that each cost $15.75. she used a coupon for 20% off her purchase and she paid sales tax of 8%. rounded t

o the nearest cent, what was the final cost of Rosalie's books?

1 answer:

lisov135 [29]2 years ago

8 0

Answer:

75$

Step-by-step explanation:

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What is the answer please help

Alekssandra [29.7K]

Answer:

x^2 + 3x -1

Step-by-step explanation:

f(x) = 3x-2

g(x) = x^2+1

(f+g)(x) = 3x-2+x^2+1

Combine like terms

= x^2 + 3x -1

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2 years ago

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Step-by-step explanation:

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1 year ago

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3 years ago

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Step-by-step explanation:

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3 years ago

Read 2 more answers

What is the area of △ABC ? Enter your answer, as a decimal, in the box. Round only your final answer to the nearest tenth. units

fiasKO [112]

Answer: $36.1\ units^2$

Step-by-step explanation:

You need to use the SAS area formula. This is:

$A=\frac{a*b*sin(\alpha)}{2}$

Given the triangle ABC, you know that:

$a=AC=10\ units\\b=BC=17\ units\\\alpha=\angle ABC=25.1\°$

Therefore, substituting these values into the formula, you get that the area of the triangle ABC is:

$A=\frac{(10\ units)(17\ units)*sin(25.1\°)}{2}\\\\A=36.1\ units^2$

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2 years ago