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Feliz [49]
3 years ago
8

Megan expects to save an average of 5 dollars per week from her babysitting earnings. The relationship between time and the amou

nt of money she saves is shown on the graph. Which other ordered pairs would fall on this line? Select all that apply.
(0.5, 2.5)
(3, 18)
(0, 0)
(4.5, 30)
Mathematics
2 answers:
Novosadov [1.4K]3 years ago
5 0

Answer:

(0,0), (0.5, 2.5)

Step-by-step explanation:

I had gotten that correct!

marissa [1.9K]3 years ago
3 0

Answer:

0,0), (0.5, 2.5)

Step-by-step explanation:

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Tju [1.3M]

Answer:

what does the -514 relate with 11/12?

Step-by-step explanation:

11/12 written as a decimal is .91

3 0
2 years ago
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Use the area model to write a fraction equivalent to <br> 1/5
juin [17]
A fraction equivalent to 1/5 could be 2/10
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3 years ago
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)
=e^{-2t}(e^{2t}+1)^2
\implies\sqrt{(e^t-e^{-t})^2+(-2)^2}=\dfrac{e^{2t}+1}{e^t}

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
Help out.........................................................................
solniwko [45]
3.4 = -13.6 - 3.4c + 1.7c
3.4 = -13.6 - 1.7c
1.7c = -13.6 - 3.4
1.7c = 17
c = 10
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3 years ago
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Your answer is D.
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