All categories

3 years ago

204100 were would the decimal go??

Mathematics

1 answer:

Lostsunrise [7]3 years ago

4 0

20.41 is what the correct answe

You might be interested in

F(x)= x3 2x - 567+192

pentagon [3]

Answer:

Have a lovely day

6 0

3 years ago

Evaluate the line integral: Int(x^2 dx +y^2 dy) ∫Cx2dx+y2dy C consists of the arc of the circle x^2+y^2=4 from (2,0) to (0,2) fo

pychu [463]

The first part of the arc $C$ can be parameterized by

$C_1:\mathbf r(t)=\langle 2\cos t,2\sin t\rangle$

with $0\le t\le\dfrac\pi2$ , and the second part by

$C_2:\mathbf s(t)=(1-t)\langle0,2\rangle+t\langle4,3\rangle=\langle4t,2+t\rangle$

with $0\le t\le 1$ .

Now the line integral can be computed.

$\displaystyle\int_{C=C_1\cup C_2}(x^2\,\mathrm dx+y^2\,\mathrm dx)=\int_0^{\pi/2}\left((2\cos t)^2\dfrac{\mathrm d}{\mathrm dt}(2\cos t)+(2\sin t)^2\dfrac{\mathrm d}{\mathrm dt}(2\sin t)\right)\,\mathrm dt+\int_0^1\left((4t)^2\dfrac{\mathrm d}{\mathrm dt}(4t)+(2+t)^2\dfrac{\mathrm d}{\mathrm dt}(2+t)\right)\,\mathrm dt$
$=\displaystyle\int_0^{\pi/2}(-8\cos^2t\sin t+8\sin^2t\cos t)\,\mathrm dt+\int_0^1(64t^2+(2+t)^2)\,\mathrm dt$
$=\displaystyle-8\int_0^{\pi/2}\sin t\cos t(\cos t-\sin t)\,\mathrm dt+\int_0^1(65t^2+4t+4)\,\mathrm dt$
$=\displaystyle-4\int_0^{\pi/2}\sin2t(\cos t-\sin t)\,\mathrm dt+\int_0^1(65t^2+4t+4)\,\mathrm dt$
$=\displaystyle-2\int_0^{\pi/2}(\sin t+\sin3t-\cos t+\cos3t)\,\mathrm dt+\int_0^1(65t^2+4t+4)\,\mathrm dt$
$=\displaystyle-2\left(-\cos t-\frac{\cos3t}3-\sin t+\frac{\sin3t}3\right)\bigg|_{t=0}^{t=\pi/2}+\left(\frac{65}3t^3+2t^2+4t\right)\bigg|_{t=0}^{t=1}$
$=0+\dfrac{83}3$
$=\dfrac{83}3$

5 0

3 years ago

Please answer!!! I need it quickly please

Arada [10]

Answer:

x=2

Step-by-step explanation:

3 times 2 + 2 = 8 = 2 times 2 + 4 = 8

7 0

3 years ago

Read 2 more answers

Why and how do you do this I am having a hard time

sukhopar [10]

Answer:

Peter walks at a rate of 13/4 miles per hour.

Step-by-step explanation:

Peter walks at a rate of 13/4 miles per hour because every hour, <em>represented by x</em>, he walks 3.25 hours or 13/4. y is the total miles he walked so if he walks two hours the y would equal 6.5 or 26/4 and the x would equal 2.

3 0

3 years ago

Please help me . factor. X^2-13x+40

Ainat [17]

Consider the factors of 40: ±1, ±4, ±10, ±5, ±8 ... ±5 and <span>±8 can be manipulated to fit your factorization.

(x - 8)(x - 5) works. -8 - 5 = -13, which is what you need in the middle, and -8*-5 gives you a positive 40.</span>

6 0

3 years ago

Read 2 more answers