3 years ago

SOMEONE PLEASE HELP MEEEEE3

Mathematics

1 answer:

Darina [25.2K]3 years ago

3 0

The answer is (3,4)

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Tpy6a [65]

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11 $\frac{1}{4}$

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2 years ago

Given the function f(x) = 2x, find the value of f−1(32).

Oliga [24]

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it is -30

Step-by-step explanation:

you would divide both sides by x,then f=2

using PEMDAS we come to -30

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Sort 7/10,1/2,3/5,3/4 from least to greatest .

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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

$ln(\frac{1}{2})={-0.1374t}$

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

$t=\frac{-0.6931}{-0.1374}$

$t=5.0days$

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3 years ago

Roger can type 1530 words in 1/2 hour. How many words can he type per<br> minute?<br> PLS HELP ME

Lera25 [3.4K]

Answer:

25.5

Step-by-step explanation:

1530 divided by 60 is 25.5 and 25.5 multiplied by 60 is 1530.

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2 years ago

SOMEONE PLEASE HELP MEEEEE3​

SOMEONE PLEASE HELP MEEEEE3