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balu736 [363]
2 years ago
12

Billy went on the Yahoo Finance website to check the value of his investment. Yesterday his stock was worth

Mathematics
1 answer:
maxonik [38]2 years ago
7 0

Answer:

The investment decreased by 16.5771% per share.

Step-by-step explanation:

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Evaluate the line integral for x^2yds where c is the top hal fo the circle x62 _y^2 = 9
natulia [17]
Parameterize C by

\mathbf r(t)=\langle x(t),y(t)\rangle=\langle3\cos t,3\sin t\rangle

where 0\le t\le\pi. Then the line integral is

\displaystyle\int_Cx^2y\,\mathrm dS=\int_{t=0}^{t=\pi}x(t)^2y(t)\left\|\frac{\mathrm d\mathbf r(t)}{\mathrm dt}\right\|\,\mathrm dt
=\displaystyle\int_{t=0}^{t=\pi}(3\cos t)^2(3\sin t)\sqrt{(-3\sin t)^2+(3\cos t)^2}\,\mathrm dt
=\displaystyle3^4\int_{t=0}^{t=\pi}\cos^2t\sin t\,\mathrm dt

Take u=\cos t, then

=\displaystyle-3^4\int_{u=1}^{u=-1}u^2\,\mathrm du
=\displaystyle3^4\int_{u=-1}^{u=1}u^2\,\mathrm du
=\displaystyle2\times3^4\int_{u=0}^{u=1}u^2\,\mathrm du
=54
6 0
3 years ago
What point represents 2 3/4 on the number line
baherus [9]
This point 2 3/4 on the number line
8 0
1 year ago
Noah says that 9x − 2x + 4x is equivalent to 3x because the subtraction sign tells us to subtract everything that comes after 9x
Genrish500 [490]

Answer:

Noah's claim is correct

Step-by-step explanation:

B O D M A S - Brackets, Over, Division, Multiplication, Addition and Subtraction, this means that you must do the addition first.  

2x+ 4x = 6x

9x - 6x = 3x

Noah is correct as the - sign tells us that you have to subtract everything after the 9x

Hope this is ok and helps a little bit

5 0
3 years ago
Write the explicit formula that represents the geometric sequence -2, 8, -32, 128 show your work. 
alekssr [168]
There it is! Hope that helps
Download docx
5 0
3 years ago
Please help I’m having a rough time
____ [38]

Answer:

y=mx+b

y=-2/3x-7

Step-by-step explanation:

not sure about the -7 part

hopes this helps

3 0
2 years ago
Read 2 more answers
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