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liberstina [14]
3 years ago
6

Solve for x: 8^x = (2^7)(4^9).

Mathematics
2 answers:
8_murik_8 [283]3 years ago
7 0

Answer:

C. x = 25/3

Step-by-step explanation:

maksim [4K]3 years ago
5 0

Answer:

C. X= 25/3

Step-by-step explanation:

Exact form: 25/3

Decimal form: 8.3

Mixed number form: 8 1/3

Also can u pls mark me brainliest im new

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katrin2010 [14]

Answer:

The value of \frac{dx}{dt} is \frac{160}{x^3}.

Step-by-step explanation:

The given equation is

x^4=8y^5-240

We need to find the value of \frac{dx}{dt}.

Differentiate with respect to t.

4x^3\frac{dx}{dt}=8(5y^4)\frac{dy}{dt}-0              [\because \frac{d}{dx}x^n=nx^{n-1},\frac{d}{dx}C=0]

4x^3\frac{dx}{dt}=40y^4\frac{dy}{dt}

It is given that y=2 and dy/dt=1, substitute these values in the above equation.

4x^3\frac{dx}{dt}=40(2)^4(1)

4x^3\frac{dx}{dt}=40(16)(1)

4x^3\frac{dx}{dt}=640

Divide both sides by 4x³.

\frac{dx}{dt}=\frac{640}{4x^3}

\frac{dx}{dt}=\frac{160}{x^3}

Therefore the value of \frac{dx}{dt} is \frac{160}{x^3}.

4 0
3 years ago
It takes 72 pounds of seed to completely plant an 11-acre field. How many pounds of seed are needed per acre? poundsperacre
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Step-by-step explanation:

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Harry is reviewing his finances. He compiled a list of expenses and income. Which bar chart that accurately represents Harry's s
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Step-by-step explanation:

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