3 years ago

PLEASE HELP ASAP!!!!

Mathematics

1 answer:

Fynjy0 [20]3 years ago

6 0

Answer:

It is not valid since there is more than one variable being changed at one.

Step-by-step explanation:

Jackson changed the brand of soil, but he also changes the amount of water, and the amount of sunlight the plants are receiving, so his conclusion that the soil was more effective is not valid.

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24/k=4<br> what is k<br> show your steps

Anna [14]

Answer:

Step-by-step explanation:

cross multiplying 24/4 = k/1

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2 years ago

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a 34 gram sample of a substance that's used to treat thyroid disorders has a k-value of 0.137. find the substance's half-life, i

Ira Lisetskai [31]

Answer:

5.1 days

Step-by-step explanation:

Given in the question,

initial amount of substance = 34 grams

k-value = 0.137

To find the half life of this substance we will use following formula

$N(0)/2 = N(0)e^{-kt}$

here N(0) is initial amount of substance

t is time in days

Plug values in the formula

$34 /2 = 34e^{-0.137t}$

1/2 = e^{-0.137t}

Take logarithm on both sides

ln(1/2) = ln( e^{-0.137t})

ln(1/2) = -0.137t

t = ln(1/2) / -0.137

t = 5.059

t ≈ 5.1 days (nearest to tenths)

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3 years ago

A function that is continuous over a finite closed interval necessarily have both a maximum and a minimum value over that interv

aleksklad [387]

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3 years ago

What is the answer to this algebra/geometry question?

Keith_Richards [23]

I think it's 4a+2, what are the different options?

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Three friends equally share 1/3 bag of popcorn, how much of a bag of popcorn will each friend get?

maxonik [38]

Answer:

$\frac{1}{9}$ or 0.1 recurring

Step-by-step explanation:

$\frac{1}{3}$ divided by 3

= $\frac{1}{9}$

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