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3 years ago

Can someone plz help me with this one problem plz!!!

Mathematics

1 answer:

Serga [27]3 years ago

5 0

Answer:

19, 12, 25

Step-by-step explanation:

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A sample of radium has a weight of 1.5 mg and decays

Oliga [24]

Answer: $(b)$

Step-by-step explanation:

Given

Initial mass of radium is $A_o=1.5\ mg$

It decays by half every 6 years i.e. $T_{\frac{1}{2}}=6$

For radioactive decay, sample at any time is given by

$\Rightarrow A=A_o2^{-\dfrac{t}{T_{\frac{1}{2}}}}$

Insert the values

$\Rightarrow A=1.5\cdot 2^{\dfrac{-t}{6}}\\\\\Rightarrow A=1.5\cdot \left(\dfrac{1}{2}\right)^{\dfrac{-t}{6}}\\\\\Rightarrow A=1.5\cdot (0.5)^{\dfrac{t}{6}}$

Thus, option (b) is correct.

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3 years ago

Identify the slope and y intercept in a table

stich3 [128]

Answer:

May I see the table?

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2 years ago

5x= 20 word problem

gtnhenbr [62]

${{ \large{ \blue{ \rm{{↬}}}}}} \large \rm \: \: 5x \: = \: 20$

${{ \large{ \blue{ \rm{{↬}}}}}} \large \rm \: \: x \: = \: \cancel\frac{20}{5} \\$

${{ \large{ \blue{ \rm{{↬}}}}}} \large \rm \: \: x \: = \: 4$

4 0

3 years ago

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Which set of points would result in a slope of 1/4

8090 [49]

Answer:

C) ( 8,2) and (4,1)

The slope of the line

$m = \frac{1}{4}$

Step-by-step explanation:

<u><em>Explanation:-</em></u>

Given that the set of points ( 8,2) and (4,1)

ThesSlope of the line

$m = \frac{y_{2}-y_{1} }{x_{2} -x_{1} }$

$m = \frac{1-2 }{4-8 }= \frac{-1}{-4} = \frac{1}{4}$

The slope of the line

$m = \frac{1}{4}$

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3 years ago

While sitting on a park bench, Tanisha counts that 16 out of 20 people who walk by her have a pet with them.

skad [1K]

Answer:

the answer would be-

Step-by-step explanation:

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3 years ago

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