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2 years ago

Find the measure of the inscribed angle indicated

Mathematics

1 answer:

solmaris [256]2 years ago

7 0

Answer:

77°

Step-by-step explanation:

there's a rule, look it up

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Plutonium-240 decays according to the function L where o

PIT_PIT [208]

Answer:

$\boxed{\textbf{1700 yr}}$

Step-by-step explanation:

$-\dfrac{\text{d}L}{\text{d}t} = kL\\\\\dfrac{dL}{L}=-kdt\\\\\ln L = -kt + C\\\text{At t = 0, L = L$_{0}$, so C = $\ln L_{0}$}\\\ln L = -kt + \ln L_{0}\\\ln L_{0} - \ln L = kt\\\\\ln \dfrac{L_{0}}{L} =kt$

Data:

L₀ = 24 g

L = 20 g

k = 0.000 11 yr⁻¹

Calculation:

$\ln \dfrac{24}{20} =0.000 11t\\\\\ln 1.2 = 0.000 11t\\\\0.1823 = 0.000 11t\\\\t = \dfrac{0.1823}{0.000 11} = \textbf{1700 yr}\\\\\text{It will take } \boxed{\textbf{1700 yr}}\text{ for the polonium to decay to 20 g}$

8 0

3 years ago

When a person agrees to a regular, fixed payment of wages over a period of time, he/she agrees to earn a

navik [9.2K]

I’m pretty sure it’s wage or salary

6 0

3 years ago

Read 2 more answers

In a certain Algebra 2 class of 26 students, 5 of them play basketball and 12 of them play baseball. There are 12 students who p

loris [4]

Answer: $\dfrac{7}{13}$

Step-by-step explanation:

There are only two games basketball and baseball.

Any student who plays could play basketball or baseball.

Given that there are $26$ students in total.

Given that there are $12$ students who don't play any game at all.

So,there are $26-12=14$ students who play play some baseball or basketball.

$Probability=\frac{\text{number of favourable outcomes}}{\text{total number of outcomes}}$

The required probability is $\frac{14}{26}=\frac{7}{13}$

6 0

3 years ago

Used to find the midpoint between two points (x1,y1) and (x2,y2)

9966 [12]

Answer:

The midpoint is

( (x1+x2)/2, (y1+y2)/2)

Step-by-step explanation:

To find the x coordinate of the midpoint

(x1+x2)/2

To find the x coordinate of the midpoint

(y1+y2)/2

The midpoint is

( (x1+x2)/2, (y1+y2)/2)

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2 years ago

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3 years ago