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GREYUIT [131]
3 years ago
8

PLEASE HELP ME! 40 POINTS! there’s a photo that has the problem.

Mathematics
2 answers:
denpristay [2]3 years ago
7 0
We can’t see the image please post this again
nikitadnepr [17]3 years ago
6 0
Is this division?? And what do we do with the number line
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What is the average rate of change of f(x)=-2x+1 from x=-5 to x=1?
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Answer:

D

Step-by-step explanation:

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The exchange rate at the Post Office is $1 = (1.17<br><br> How many euros will you get for E280?
nika2105 [10]

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Step-by-step explanation:

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2 years ago
Write an equation for a parabola with x-intercepts (-4,0) and (5,0) which passes through the point (3. – 28).
Vanyuwa [196]

Answer:

y=a(x-p)(x-q)

y=a(x+2+√2)(x+2-√2)

passing through point (-1,1)

substitute

1=a(-1+2+√2)(-1+2-√2)

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1=a(1-2)

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Thanks rate 5 stars

5 0
3 years ago
Solve the equation. StartFraction dx Over dt EndFraction equals StartFraction 1 Over x e Superscript t plus 7 x EndFraction An i
MAVERICK [17]

Answer:

\frac{1}{49}(7x-1)e^{7x}+e^{-t}=C

Step-by-step explanation:

We are given that

\frac{dx}{dt}=\frac{1}{xe^{t+7x}}

We have to find the implicit function

Using separation variable method

\frac{dx}{dt}=\frac{1}{xe^t\cdot e^{7x}}

By using property x^a\cdot x^y=x^{a+y}

xe^{7x}dx=e^{-t}dt

By using property \frac{1}{x^a}=x^{-a}

Taking integration on both sides

\int xe^{7x}dx=\int e^{-t}dt

Parts integration method

\int u\cdot v dx=u\int vdx-\int (\frac{du}{dx}\int vdx)dx

By parts integration method

x\int e^{7x}dx-\int (\frac{dx}{dx}\int e^{7x}dx)dx=-e^{-t}+C

Using formula \int e^{ax} dx=\frac{e^{ax}}{a}+C

\frac{xe^{7x}}{7}-\frac{1}{7}\int e^{7x}dx=-e^{-t}+C

\frac{xe^{7x}}{7}-\frac{1}{49}e^{7x}+e^{-t}=C

\frac{1}{49}(7x-1)e^{7x}+e^{-t}=C

We are given that

F(x,t)=C

F(x,t)=\frac{1}{49}(7x-1)e^{7x}+e^{-t}=C

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3 years ago
Altogether, Alicia has to drive 104 miles on the turnpike.
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30 miles (104-74). Or 104 if the first 74 miles was not on the turnpike xd
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2 years ago
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