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omeli [17]
3 years ago
8

If four angles of a convex pentagon measure 120°, 93°, 108°, and 101°, find the measure of the fifth angle

Mathematics
1 answer:
Art [367]3 years ago
6 0

Answer:


Step-by-step explanation:

For a polygon of N sides, the sum is

N*(180-360/N) = N*180 - 360 degrees


Subtract (120 +93 +108 +101) from 540 for your answer

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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
Help me please asap​
podryga [215]

the answer is 9 bb ♡

57-36÷3×4

57-48=9

7 0
2 years ago
Which set of points below represents a function
vazorg [7]

Answer:

I believe it's the 3rd option:

(-1, 8), (0, 10), (1,12), (2, 14)

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
HELP ME PLZ! :3
sveta [45]
Part A:
y=mx+b
621=83(7)+b

Part B:
621=83(7)+b
621=581+b
621-581=b
b=40
Insurance cost is 40$


6 0
2 years ago
I don't get this I really need help to understand this "/
Alisiya [41]
I don't either it is quite hard to be fair
4 0
3 years ago
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