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3 years ago

I need help thx i need it now pls

Mathematics

2 answers:

ryzh [129]3 years ago

7 0

Answer: Read below.

Step-by-step explanation:

1) V = 84.82 Estimate: 85

2) V = 564.44 Estimate: 564

3) V = 4712.39 Estimate: 4712.4

jeyben [28]3 years ago

7 0

Answer:

Step-by-step explanation:

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2 years ago

Y=3 - 2x 3x + 4y = 1

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3 years ago

Please answer 4-8 much appreciated!

Luba_88 [7]

For 6 points, answering 5 questions is a rip-off.

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haha sike get noob

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2 years ago

Read 2 more answers

Simplify the expression (-3x^-4)^2

Bond [772]

$(-3x^{-4})^2\\9x^{-8}$

7 0

3 years ago

I NEED HELP!! please show all work

PtichkaEL [24]

Take the logarithm of both sides. The base of the logarithm doesn't matter.

$4^{5x} = 3^{x-2}$

$\implies \log 4^{5x} = \log 3^{x-2}$

Drop the exponents:

$\implies 5x \log 4 = (x-2) \log 3$

Expand the right side:

$\implies 5x \log 4 = x \log 3 - 2 \log 3$

Move the terms containing x to the left side and factor out x :

$\implies 5x \log 4 - x \log 3 = - 2 \log 3$

$\implies x (5 \log 4 - \log 3) = - 2 \log 3$

Solve for x by dividing boths ides by 5 log(4) - log(3) :

$\implies \boxed{x = -\dfrac{ 2 \log 3 }{ 5 \log 4 - \log 3 }}$

You can stop there, or continue simplifying the solution by using properties of logarithms:

$\implies x = -\dfrac{ \log 3^2 }{ \log 4^5 - \log 3 }$

$\implies x = -\dfrac{ \log 9 }{ \log 1024 - \log 3 }$

$\implies \boxed{x = -\dfrac{ \log 9 }{ \log \frac{1024}3 }}$

You can condense the solution further using the change-of-base identity,

$\implies \boxed{x = -\log_{\frac{1024}3}9}$

5 0

2 years ago