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miss Akunina [59]
3 years ago
10

What is 2log5(5x^3)+(1/3)log5((x^2)+6) written as a single logarithm?

Mathematics
2 answers:
joja [24]3 years ago
4 0
Assuming 5 is the base. I'm going to leave that out for now.

2log(5x^3) + (1/3)log(x^2+6)

power rule
log(5^2 x^3*2) + log((x^2 + 6)^(1/3))

log(25x^6) + log((x^2 + 6)^(1/3))

quotient rule
log(25x^6 / (x^2 + 6)^(1/3))
Sphinxa [80]3 years ago
4 0

Answer: =log_5\ (25\ x^6\ \sqrt[3]{x^2+6})


Step-by-step explanation:

Given log expression  2log_5(5x^3)+\frac{1}{3} log_5((x^2)+6).

First we would apply log rule of exponents : nlog_b(a) = log_b(a)^n

2log_5(5x^3)+\frac{1}{3} log_5((x^2)+6) = log_5(5x^3)^2+ log_5((x^2)+6)^{\frac{1}{3}}.

Converting rational exponent into radical form, we get

log_5(5x^3)^2+ log_5\sqrt[3]{((x^2)+6)}.

Simplifying (5x^3)^2 = 5^2x^{3\times 2} = 25x^6

= log_5(25x^6)+ log_5\sqrt[3]{((x^2)+6)}.

Applying sum of logs rule log_b(m)+log_b(n) = log_b(m\times n).

=log_5\ (25\ x^6\ \sqrt[3]{x^2+6})

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lukranit [14]

Answer:

82.79MPa

Step-by-step explanation:

Minimum yield strength for AISI 1040 cold drawn steel as obtained from literature, Sᵧ = 490 MPa

Given, outer radius, r₀ = 25mm = 0.025m, thickness = 6mm = 0.006m, internal radius, rᵢ = 19mm = 0.019m,

Largest allowable stress = 0.8(-490) = -392 MPa (minus sign because of compressive nature of the stress)

The tangential stress, σₜ = - ((r₀²p₀)/(r₀² - rᵢ²))(1 + (rᵢ²/r²))

But the maximum tangential stress will occur on the internal diameter of the tube, where r = rᵢ

σₜₘₐₓ = -2(r₀²p₀)/(r₀² - rᵢ²)

p₀ = - σₜₘₐₓ(r₀² - rᵢ²)/2(r₀²) = -392(0.025² - 0.019²)/2(0.025²) = 82.79 MPa.

Hope this helps!!

8 0
3 years ago
An artist creates a cone-shaped sculpture for an art exhibit. If the sculpture is 8 feet tall and has a
nikitadnepr [17]

Answer:

192.92 ft^3

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volume of a cone = \frac{1}{3}πr²h

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Step-by-step explanation:

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Answer:

x=5.250

Step-by-step explanation:

We have been given an equation 4x-3=18. We are asked to solve our given equation.

First of all, we will add 3 to both sides of our equation.

4x-3+3=18+3

4x=21

Now, we will divide both sides of our equation by 4.

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Upon rounding our answer to nearest thousandth (3 places after decimal) we will get,

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Therefore, the solution for our given equation is x=5.250.

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Brainliest?!?!

Stay safe and have a nice day/night/afternoon!!!

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