3 years ago

Explain your answer !! Have a nice day Will give braisnlt

Mathematics

1 answer:

Fudgin [204]3 years ago

4 0

I NEED POINT ILYSM AND I HOPE U HAVE A WONDERFUL DAY AND U ARE LOVED AND ILYSM MWA

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LiRa [457]

The square root of 25 is 5

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PLEASE HELP! WILL GIVE BRAINLIEST!

Alex Ar [27]

The one in the middle you can tell because when x=0 that is the y intercept and the graph had a y intercept of 4 and the middle graph had 5

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A 46 gram sample of a substance that is used to sterilize surgical instruments has a k-value of 0.1374. Find the substance's hal

mars1129 [50]

Answer:

$t=5.0days$

Step-by-step explanation:

Using the formula for the exponential decay that is $N=N_{0}e^{-kt}$ , we have N= $\frac{1}{2}{\times}46=23$ , $N_{0}=46$ and k=0.1374.

Thus, $N=N_{0}e^{-kt}$ becomes

$23=46{\times}e^{-0.1374t}$

$\frac{23}{46}=e^{-0.1374t}$

$\frac{1}{2}=e^{-0.1374t}$

Taking log on both sides, we get

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$t=\frac{ln\frac{1}{2}}{-0.1}$

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$t=5.0days$

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3 years ago

You bought a magazine for $5 and some notepads for $3 each. You spent a total of $26. How many notepads did you buy?

german

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