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4 years ago

8

Please help me solve 5x-2=1

1 answer:

Nuetrik [128]4 years ago

4 0

X=3/5
Would be the answer
I’m in geometry and i know that

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In chemistry class, Bob recorded the volume of a liquid as 13.2 mL. The actual volume was 13.7 mL. Use the formula to find perce

frez [133]

Experimental value=13.2mL
actual volume=13.7mL

|13.2-13.7|=|-0.5|=0.5
0.5/13.7 *100%=3.7%

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3 years ago

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Helppppppp me pls :)

fredd [130]

Answer:

3.6

Step-by-step explanation:

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3 years ago

Which expresses 2.7 billion in scientific notation

liraira [26]

Answer: A 2.7 x 10^9

Explanation: brain go brrrrr

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3 years ago

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Amanda is 25 years old. in 5 years she will be twice as old as simone how old i simone

Nadya [2.5K]

We could use Algebra for this question but it’s quite simile so won’t need it. If Amanda is 25, when we add on 5 years she’ll be 30. Now it says when she’s 30, she will be twice as old as Simone. Implying that Simone will be half of Amanda’s age. In this case 30/2 = 15. So Simone must be 15.

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3 years ago

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The age of the Hawaiian islands gets older as you move from east to west. If the half-life of K-40 is 1.3 billion years, approxi

Mumz [18]

Answer:

$t \approx 750550.12\,yr$

Step-by-step explanation:

The time constant of the isotope is:

$\tau = \frac{1.3\times 10^{9}\,yr}{\ln 2}$

$\tau \approx 1.876 \times 10^{9}\,yr$

The decay of the isotope is described by the following model:

$\frac{m}{m_{o}} = e^{-\frac{t}{\tau} }$

Now, the time is cleared in the equation:

$t = -\tau \cdot \ln \frac{m}{m_{o}}$

$t = - (1.876\times 10^{9}\,yr)\cdot \ln 0.9996$

$t \approx 750550.12\,yr$

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3 years ago