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3 years ago

Find the measure of the indicated angle. Round to the nearest degree.

Mathematics

1 answer:

yuradex [85]3 years ago

8 0

Angle=28.1416
Rounded=28

hope this helps

pls give brainliest!

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In the formula A(t) = A0ekt, A(t) is the amount of radioactive material remaining from an initial amount A0 at a given time t an

Alenkasestr [34]

Answer: 693 years

Step-by-step explanation:

Expression for rate law for first order kinetics is given by:

$A(t) =A_0e^{kt}$

k = rate constant

t = time taken for decomposition = 1

$A_0$ = Initial amount of the reactant

$A_t$ = amount of the reactant left = $A_0-\frac{0.1}{100}\times A_0=0.999A_0$

$0.999A_0=A_0e^{k\times 1}$

$0.999=e^k$

$k=-0.001year^{-1}$

for half life : $t=t_\frac{1}{2}$

$A_t=\frac{1}{2}A_o$

Putting in the values , we get

$\frac{1}{2}A_0=A_0e^{-0.001\times t_\frac{1}{2}$

$t_\frac{1}{2}=693 years$

Thus half life of this isotope, to the nearest year is 693.

8 0

4 years ago

Brainliest if your correct

loris [4]

Answer:

it would be the last option

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Plzzz helpppppp nowwwww

snow_lady [41]

Answer:

x= 10

I hope i helped, best of luck!

4 0

3 years ago

Read 2 more answers

In the school band, there is 1 boy for every 5 girls. There is a total of 12 boys. How many girls are in the band?

Sophie [7]

Answer:

Step-by-step explanation:

5 times 12

4 0

3 years ago

Solve For 1/4 + 1/2 + x = - 3/4

ivann1987 [24]

Answer:

x= negitive 6/8

Step-by-step explanation:

Ok think about it 1/4 plus 1/2 is 3/4

so how do i go to negitives?

you double the amount of it and then minus it

because 3/4- 3/4 would be zero

so you have to double it to get that answer

have a wonderful day filled with only joy!

5 0

3 years ago