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3 years ago

11

Consider the following data set with an even number of data

1 answer:

photoshop1234 [79]3 years ago

8 0

I guess “1” is the minimum value

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a 40 gram sample of a substance that's used for drug research has a k-value of 0.1446. find the substance's half life in days

Novay_Z [31]

The applicable decay formula is:N = No*e^(-kt)WhereN = Mass left after time tNo = Original massk = constantt = half lifeUsing the values given,N/No = e^(-0.1446t) = 1/2ln (1/2) = -0.1446 t *ln e^1-0.6931 = -0.1446 tt = 0.6331/0.1446 = 4.79 daysTherefore, half-life is 4.8 days.

3 0

4 years ago

Read 2 more answers

PLEAAseeeeeeeeeeeeeeeeeeeeeee

aleksandr82 [10.1K]

Answer:

$1.25\cdot10^{5}$ $or$ $125000$

Step-by-step explanation:

$--------------------------------------------$

$1)$ $64\cdot10^{6}$ = $64000000$

$2 )$ $32\cdot10^{6}$ = $32000000$

$3)$ $16\cdot10^{6}$ = $16000000$

$4)$ $8\cdot10^{6}$ = $8000000$

$5)$ $4\cdot10^{6}$ = $4000000$

$6)$ $2\cdot10^{6}$ = $2000000$

$7)$ $1\cdot10^{6}$ = $1000000$

$8)$ $5\cdot10^{5}$ = $500000$

$9)$ $2.5\cdot10^{5}$ = $250000$

$10)$ $1.25\cdot10^{5}$ = $125000$

$--------------------------------------------$

<em>The way I solved this question was by dividing each scientific form by two.</em>

$--------------------------------------------$

<em>Hope this helps! <3</em>

$--------------------------------------------$

6 0

3 years ago

Need precalc help. i’ll give brainliest

Ilya [14]

Answer in picture below

8 0

2 years ago

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How do i send a pic

Assoli18 [71]

Do what you just did rn

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3 years ago

The area of a triangle is 528cm2. The length of its base is 33cm. Calculate the perpendicular height of the triangle

IRISSAK [1]

A = bh/2
A = 33 x h / 2
528 = 33h / 2
33h = 1056
h = 32cm

4 0

2 years ago

Read 2 more answers