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3 years ago

Final question for my homework

Mathematics

2 answers:

zubka84 [21]3 years ago

6 0

20% = 0.20

- - 0.20 = 0.80

28*0.80 = 22.40

22.40-2 = 20.40

it cost $20.40

valkas [14]3 years ago

5 0

<span><span>First, you need to find out what 20% of $28 is so you can subtract if from the price of the necklace.
</span> $28 x .20 = $5.60</span>

<span><span>Now we can subtract the $5.60 from $28.
</span> $28 – $5.60 = $22.40</span>

<span><span>Now we can subtract the $2 coupon.
</span> $22.40 - $2 = $20.40</span>

So, the price that Jane will pay for the necklace is $20.40

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Sladkaya [172]

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From the question

The function given is $f(x) = \frac{e^{2x}}{ 25 + e^{4x}} dx$

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$\int\limits {\frac{e^{2x}}{ 25 + e^{4x}}} \, dx$

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=> $2 e^{2x}dx = du$

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