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2 years ago

How many thousands equal 20 hundreds

1 answer:

3 0

The correct answer is:
2.

Explanation:
20 hundreds =20*100=2000;
this is two thousand, so it is made of 2 thousands.

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For the given position vectors r(t) compute the unit tangent vector T(t) for the given value of t .

algol13

Answer:

a) $T(t) = \frac{}{5}=$

$T(4) =$

b) $T(t) = \frac{}{8\sqrt{37}}$

$T(4) =$

c) $T(t) = \frac{}{2425825977}$

$T(4) = \frac{1}{2425825977}$

Step-by-step explanation:

The tangent vector is defined as:

$T(t) = \frac{r'(t)}{|r'(t)|}$

Part a

For this case we have the following function given:

$r(t) =$

The derivate is given by:

$r'(t) =$

The magnitude for the derivate is given by:

$|r'(t)| = \sqrt{25 sin^2(5t) +25 cos^2 (5t)}= 5\sqrt{cos^2 (5t) + sin^2 (5t)} =5$

And then the tangent vector for this case would be:

$T(t) = \frac{}{5}=$

And for the case when t=4 we got:

$T(4) =$

Part b

For this case we have the following function given:

$r(t) =$

The derivate is given by:

$r'(t) =$

The magnitude for the derivate is given by:

$|r'(t)| = \sqrt{4t^2 +9t^4}= t\sqrt{4 + 9t^2}$

$|r'(4)| = \sqrt{4(4)^2 +9(4)^4}= 4\sqrt{4 + 9(4)^2} = 4\sqrt{148}= 8\sqrt{37}$

And then the tangent vector for this case would be:

$T(t) = \frac{}{8\sqrt{37}}$

And for the case when t=4 we got:

$T(4) =$

Part c

For this case we have the following function given:

$r(t) =$

The derivate is given by:

$r'(t) =$

The magnitude for the derivate is given by:

$|r'(t)| = \sqrt{25e^{10t} +16e^{-8t} +1}$

$|r'(t)| = \sqrt{25e^{10*4} +16e^{-8*4} +1} =2425825977$

And then the tangent vector for this case would be:

$T(t) = \frac{}{2425825977}$

And for the case when t=4 we got:

$T(4) = \frac{1}{2425825977}$

5 0

3 years ago

You run 4 3/4 miles through a park each day. If you ran that distance 5 times last week, how many miles did you run?

Lelechka [254]

It;s simple you just take 4 3/4 and multiply it by 5
which is 23 3/4 or 23.75

7 0

3 years ago

Read 2 more answers

- 5(x - 3) + 4 Completely simplify the expression

Artemon [7]

Answer:

Step-by-step explanation:

08– Ao Fatorar a expressão

2+6+9

a solução correta

2 −9

Leia e responda:

5 0

3 years ago

Please help I will mark brainlist

Naya [18.7K]

Answer:

B x = sqrt(48)

Step-by-step explanation:

Half of the bottom side measures 4.

4^2 + x^2 = 8^2

16 + x^2 = 64

x^2 = 48

x = sqrt(48)

Answer: B x = sqrt(48)

4 0

3 years ago

How many sixths are in 3 and 1 third ??

lorasvet [3.4K]

1 whole thing = 6 sixths
3 whole things = 18 sixths

1 third of a whole thing = 2 sixths of it

3 wholes plus 1 third = 18 sixths plus 2 sixths = 20 sixths

6 0

3 years ago

Read 2 more answers