Arnie is an American teaching English in Japan, and he currently has 55,000

Mathematics

1 answer:

BARSIC [14]1 year ago

7 0

Answer:

The worth of his bank account in USD would go from $605.93 to $602.81 cents. This is because it due to the change in exchange rates it requires more yen to make up a dollar which would cause it to take more yen to make a dollar. I hope this helps :D

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Martin finds a shirt on sale for 20 %off at a department store. The original price was 10$ Martin must also pay 8.5% sales tax.

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Answer:

Step-by-step explanation:

Sale price = 80% of $10 = 0.80×$10 = $8

price + tax = 1.085×$8 = $8.68

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masha68 [24]

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How are comparisons between negative numbers different than comparisons between positive numbers?

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Sav [38]

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2 years ago

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∫c<br> x sin y ds, C is the line segment from (0, 1) to (3, 5)

Mnenie [13.5K]

Parameterize the line segment $C$ by

$\mathbf r(t)=\langle x(t),y(t)\rangle=(1-t)\langle0,1\rangle+t\langle3,5\rangle=\langle3t,1+4t\rangle$

where $t\in[0,1]$ . Then

$\mathrm ds=\|\mathbf r'(t)\|\,\mathrm dt$
$\mathrm ds=\|\langle3,4\rangle\|\,\mathrm dt$
$\mathrm ds=5\,\mathrm dt$

So the integral is

$\displaystyle\int_Cx\sin y\,\mathrm ds=5\int_0^1x(t)\sin y(t)\,\mathrm dt$
$=\displaystyle5\int_0^13t\sin(1+4t)\,\mathrm dt$
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2 years ago