3 years ago

Need help with question 15

Mathematics

1 answer:

OLga [1]3 years ago

6 0

I hope this helps you

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Bismuth-210 is an isotope that radioactively decays by about 13% each day, meaning 13% of the remaining Bismuth-210 transforms i

Luden [163]

Answer:

Approximately 76.5 mg.

Step-by-step explanation:

Given,

The initial quantity of the Bismuth-210, P = 233 mg,

Also, the rate of decay per day, r = 13 %

Thus, the quantity of the Bismuth-210 after 8 days would be,

$A=P(1-\frac{r}{100})^8$

$=233(1-\frac{13}{100})^8$

$=233(1-0.13)^8$

$=233(0.87)^8$

$=76.4733194697$

$\approx 76.5\text{ mg}$

3 0

3 years ago

Vx4=4 what is the answer

Volgvan

Step-by-step explanation:

v=4÷4

v=1 Ans

Do by transposition

hope it helps

8 0

3 years ago

Pllzzzz help it’s an exam !!!! A side of the triangle below has been extended to form an exterior angle of 125 . Find the value

Delvig [45]

Answer:

i think it is 105

Step-by-step explanation:

180-125=55

180-(55+25)=105

*second 180 is triangle's total interior angle

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3 years ago

What are corresponding angles

azamat

Answer:

the angles which occupy the same relative position at each intersection where a straight line crosses two others. If the two lines are parallel, the corresponding angles are equal.

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3 years ago

How do you solve those two problems?

Rom4ik [11]

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3 years ago

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