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7nadin3 [17]
3 years ago
15

1,679 rounded to the nearest thousand

Mathematics
1 answer:
polet [3.4K]3 years ago
8 0
The answer is 1700 because 1679 rounded to the nearest hundred is 1700
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A dollar bill is about 15.5 cm long. If seventeen trillion dollar bills were laid end to end around the Earth's equator, how man
Mariana [72]

Answer:

The dollar bills would encircle earth 65753.1 times

Step-by-step explanation:

We have

Length of dollar bill = 15.5 cm

Total dollar bills = 17 trillion = 17\times 10^{12}

Thus the length of 17 trillion dollar bills equals

15.5\times 17\times 10^{12}cm\\\\=263.5\times 10^{12}cm\\\\=\frac{263.5\times 10^{12}}{10^{5}}km\\\\=263.5\times 10^{7}km

Now taking shape of earth as a perfect sphere the circumference of earth becomes

C=2\pi r\\\\=2\times \pi \times 6378km\\\\=40074.1558km

Thus the number of times the dollar bills would encircle earth equals

\frac{263.5\times 10^{7}km}{40074.1558km}=65753.21times

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6 0
3 years ago
If (x)= 2x square minus 1,then f(-3)
viva [34]

Answer:

17.

Step-by-step explanation:

f(x) = 2x^2 - 1

f(-3) = 2(-3)^2 - 1

= 2 * 9 - 1

= 18 - 1

= 17

Hope this helps!

4 0
3 years ago
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Which expression is equivalent 8(3x-6)
Anon25 [30]

24x-48 is the answer



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3 years ago
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What is the distance in units between (15,-17) and (-20,-5)
nevsk [136]

Answer:

41.34

Step-by-step explanation:

We can use the Pythagorean theorem to solve for the distance. First we will create an <em>imaginary </em><em>triangle </em>with the leg lengths being the x distance and y distance between the 2 points and the hypotenuse being the distance between the 2 points.

x distance =

15 - (-20) = 35

y distance =

|-17-5| =  | - 22| = 22

We can now use the Pythagorean theorem (a²+b²=c²) with our <em>imaginary </em><em>triangle</em>

xdistance²+ydistance²=distance²

35²+22²=distance²

1709=distance²

\sqrt{1709}  = distance

In decimal form the distance would be around 41.34.

That is the answer

- Kan Academy Advance

3 0
3 years ago
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