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Mumz [18]
3 years ago
12

What is the value of the digit 4 in the number 84230

Mathematics
2 answers:
leonid [27]3 years ago
7 0
It should be 4 thousand
Yuri [45]3 years ago
5 0
The answer is 4000 because of logic
You might be interested in
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yan [13]

Answer:i dfont kngodw

Step-by-step explanation:

its probably c

3 0
3 years ago
Find the length of the following​ two-dimensional curve. r (t ) = (1/2 t^2, 1/3(2t+1)^3/2) for 0 < t < 16
andrezito [222]

Answer:

r = 144 units

Step-by-step explanation:

The given curve corresponds to a parametric function in which the Cartesian coordinates are written in terms of a parameter "t". In that sense, any change in x can also change in y owing to this direct relationship with "t". To find the length of the curve is useful the following expression;

r(t)=\int\limits^a_b ({r`)^2 \, dt =\int\limits^b_a \sqrt{((\frac{dx}{dt} )^2 +\frac{dy}{dt} )^2)}     dt

In agreement with the given data from the exercise, the length of the curve is found in between two points, namely 0 < t < 16. In that case a=0 and b=16. The concept of the integral involves the sum of different areas at between the interval points, although this technique is powerful, it would be more convenient to use the integral notation written above.

Substituting the terms of the equation and the derivative of r´, as follows,

r(t)= \int\limits^b_a \sqrt{((\frac{d((1/2)t^2)}{dt} )^2 +\frac{d((1/3)(2t+1)^{3/2})}{dt} )^2)}     dt

Doing the operations inside of the brackets the derivatives are:

1 ) (\frac{d((1/2)t^2)}{dt} )^2= t^2

2) \frac{(d(1/3)(2t+1)^{3/2})}{dt} )^2=2t+1

Entering these values of the integral is

r(t)= \int\limits^{16}_{0}  \sqrt{t^2 +2t+1}     dt

It is possible to factorize the quadratic function and the integral can reduced as,

r(t)= \int\limits^{16}_{0} (t+1)  dt= \frac{t^2}{2} + t

Thus, evaluate from 0 to 16

\frac{16^2}{2} + 16

The value is r= 144 units

5 0
3 years ago
I need help again please 5/6-1/6
Murljashka [212]
The answer is 2/3 in lowest terms.
6 0
3 years ago
Which transformations will produce similar but not congruent figures
denpristay [2]

Answer:

The third one.

Step-by-step explanation:

Because all the other ones does a transformation that doesn't change the size of the figure. The third one is dilated, which means that the original figure is being made smaller or bigger. So the final result will be different from the original figure.

5 0
3 years ago
Read 2 more answers
What is the value of "x" if -2(3x+2)&gt;-8x+6
lukranit [14]

Answer:

<h2>x > 5</h2>

Step-by-step explanation:

-2(3x+2) > -8x+6

Expand the terms

That's

- 6x - 4 > - 8x + 6

- 6x + 8x > 6 + 4

2x > 10

Divide both sides by 5

<h3>x > 5</h3>

Hope this helps you.

3 0
3 years ago
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