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padilas [110]
3 years ago
10

If f(x)=x+7 and g(x)=1/x-13 what is the domain of (f*g)(x)

Mathematics
2 answers:
miss Akunina [59]3 years ago
6 0
I think the answer is b
Brrunno [24]3 years ago
4 0
The answer is B.......

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Elin has 1/3 hour to warm up for her gymnastics meet. She must complete each 6 different stretches. She spends an equal amount o
Novay_Z [31]

Answer:

1/18 hr per stretch

Step-by-step explanation:

total # of hrs / # of stretches

1/3 hr / 6 stretches = 1/18 hr per stretch

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3 years ago
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An $18 item is marked down 30% what is the clearance price
ivanzaharov [21]
18×30%=

18×.30=5.4

5.4 is the amount of clearanceyou get from the item
Know you have to subtract $5.40 from $18.00

18-5.4=12.6

The item is know $12.60
8 0
3 years ago
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Sketch the domain D bounded by y = x^2, y = (1/2)x^2, and y=6x. Use a change of variables with the map x = uv, y = u^2 (for u ?
cluponka [151]

Under the given transformation, the Jacobian and its determinant are

\begin{cases}x=uv\\y=u^2\end{cases}\implies J=\begin{bmatrix}v&u\\2u&0\end{bmatrix}\implies|\det J|=2u^2

so that

\displaystyle\iint_D\frac{\mathrm dx\,\mathrm dy}y=\iint_{D'}\frac{2u^2}{u^2}\,\mathrm du\,\mathrm dv=2\iint_{D'}\mathrm du\,\mathrm dv

where D' is the region D transformed into the u-v plane. The remaining integral is the twice the area of D'.

Now, the integral over D is

\displaystyle\iint_D\frac{\mathrm dx\,\mathrm dy}y=\left\{\int_0^6\int_{x^2/2}^{x^2}+\int_6^{12}\int_{x^2/2}^{6x}\right\}\frac{\mathrm dx\,\mathrm dy}y

but through the given transformation, the boundary of D' is the set of equations,

\begin{array}{l}y=x^2\implies u^2=u^2v^2\implies v^2=1\implies v=\pm1\\y=\frac{x^2}2\implies u^2=\frac{u^2v^2}2\implies v^2=2\implies v=\pm\sqrt2\\y=6x\implies u^2=6uv\implies u=6v\end{array}

We require that u>0, and the last equation tells us that we would also need v>0. This means 1\le v\le\sqrt2 and 0, so that the integral over D' is

\displaystyle2\iint_{D'}\mathrm du\,\mathrm dv=2\int_1^{\sqrt2}\int_0^{6v}\mathrm du\,\mathrm dv=\boxed6

4 0
3 years ago
Who ever helps get branliest.​
andrew11 [14]

Answer:

c ?

Step-by-step explanation:

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3 years ago
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If a car company makes a car with the option of 4 exterior colors, 3 interior colors, and 2 engines, how can the multiplication
aalyn [17]

Answer:

You can multiply all of the number of options to get an answer.

Step-by-step explanation:

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