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aliya0001 [1]
3 years ago
14

Select all ratios equivalent to 3:4.

Mathematics
2 answers:
andreyandreev [35.5K]3 years ago
7 0

Answer:

18:24

18:24

15:20

15:20

Step-by-step explanation:

Because 18/3:24/3 = 3:4

Also, 15/5:20/5 = 3:4

riadik2000 [5.3K]3 years ago
4 0
18:24
18:24
15:20
15:20
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DerKrebs [107]

a. Parameterize C by

\vec r(t)=(1-t)(5\,\vec\imath)+t(2\,\vec\jmath)=(5-5t)\,\vec\imath+2t\,\vec\jmath

with 0\le t\le1.

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\displaystyle\int_C\vec F(x,y)\cdot\mathrm d\vec r=\int_0^1\vec F(x(t),y(t))\cdot\frac{\mathrm d\vec r(t)}{\mathrm dt}\,\mathrm dt

=\displaystyle\int_0^1(-2t\,\vec\imath+(5-5t)\,\vec\jmath)\cdot(-5\,\vec\imath+2\,\vec\jmath)\,\mathrm dt

=\displaystyle\int_0^1(10t+(10-10t))\,\mathrm dt

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d. Notice that we can write the line integral as

\displaystyle\int_C\vecF\cdot\mathrm d\vec r=\int_C(-y\,\mathrm dx+x\,\mathrm dy)

By Green's theorem, the line integral is equivalent to

\displaystyle\iint_D\left(\frac{\partial x}{\partial x}-\frac{\partial(-y)}{\partial y}\right)\,\mathrm dx\,\mathrm dy=2\iint_D\mathrm dx\,\mathrm dy

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3 years ago
Multiply and divide. product or quotient
Mandarinka [93]
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3 years ago
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Select the answer choice that is equivalent to the expression given belon.
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Answer:

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18x - 27 + 5x + 17

Pair like terms

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The equivalent of 9(2x - 3) + 5x + 17 is 23x - 10

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3 years ago
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