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BigorU [14]
3 years ago
10

Why is 3(5x) not equivalent to (3×5)(3×x)

Mathematics
1 answer:
vodka [1.7K]3 years ago
7 0
 Ok, really simple, honestly. Because 3(5x) = 15x. (3*5)(3*x) = 3*5 = 15*3 = 45x. Therefore, 15x and 45x do not correspond to each other at all, meaning that 3(5x) is not equivalent to (3*5)(3*x)!!!

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May someone please help me find three ordered pairs so I can graph on the coordinate plane please you get five stars and things
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Answer:

the answer for x-y=(-2) is x=y−2 the answer for x-y=2 is x=2+y

Step-by-step explanation:

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Read 2 more answers
Find the length of the curve x=e^t e^{-t},\;\;y=5-2t,\;\;0 \le t \le 3.
Oksana_A [137]
\begin{cases}x(t)=e^t+e^{-t}\\y(t)=5-2t\end{cases}\implies\begin{cases}x'(t)=e^t-e^{-t}\\y'(t)=-2\end{cases}

The length of the curve is given by the integral

\displaystyle\int_0^3\sqrt{(e^t-e^{-t})^2+(-2)^2}\,\mathrm dt

Expand and rewrite the integrand:

(e^t-e^{-t})^2+(-2)^2=e^{2t}+2+e^{-2t}
=e^{-2t}(e^{4t}+2e^{2t}+1)
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Now the integral is

\displaystyle\int_0^3\dfrac{e^{2t}+1}{e^t}\,\mathrm dt=\int_0^3(e^t+e^{-t})\,\mathrm dt
=2\displaystyle\int_0^3\cosh t\,\mathrm dt
=2\sinh t\bigg|_{t=0}^{t=3}
=2\sinh 3
7 0
3 years ago
Is 22 ounces equal to 6 pound
serious [3.7K]
NO

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22 ounce = 1.375 pound ≠ 6 pound


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Answer:

x = -2

Step-by-step explanation:

x - 8 = -10

(+8 on both sides to leave x by itself)

x = -2

4 0
4 years ago
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