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BaLLatris [955]

3 years ago

6

Concept 44: I can determine the circumference of a circle and use the circumference of a circle to find its diameter and radius.

3. Find the circumference of the circle shown.

1 answer:

kolbaska11 [484]3 years ago

7 0

Answer:

Step-by-step explanation: to find circumference, u do 2*pi*radius or pi times diameter

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A scientist has 100 milligrams of a radioactive element. The amount of radioactive element remaining after t days can be determi

grandymaker [24]

The mass of the first shipment at time t is
$m_{1}=100( \frac{1}{2} )^{ \frac{t}{10}}$

The mass of the second shipment at time t is
$m_{2}=100( \frac{1}{2} )^{ \frac{t-3}{10} }$

At time t, the ratio of m₁ to m₂ is
$\frac{m_{1}}{m_{2}} = \frac{100}{100}. \frac{(1/2)^{t/10}}{(1/2)^{(t-3)/10}} \\ = \frac{(1/2)^{t/10}}{(1/2)^{t/10}}. \frac{1}{(1/2)^{-3/10}} \\ = (1/2)^{3/10} \\ = 0.8123$

Therefore as a percentage,
$\frac{m_{1}}{m_{2}} =100*0.8123 = 81.23 \%$

Answer: B. 81.2%

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3 years ago

The sum of three consecutive odd numbers is one hundred twenty -three what is the smallest number of three numbers ?

Vinil7 [7]

Answer:

117 118 119

Step-by-step explanation:

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3 years ago

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Factor the polynomial by its greatest common monomial factor.<br><br> 9m3 – 27m=

jek_recluse [69]

Step-by-step explanation:

9m out of 9m³h−27m

9m(m²h−3)

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2 years ago

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Given the following inverse variation find the missing value: (5,-8) (20, y) find the missing value

forsale [732]

This answer is pretty simple. you see (5,-8) and (20,y). well the 20 is 4 times the 5 on the x value so multiply the y value by 4 to get your answer which Y=-32 in the 2nd corrdenants.

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3 years ago

Identify all the sets to which 0.41567 belongs. Choose from rational,irrational,whole,and integer

jok3333 [9.3K]

0.41567 is:

... rational because it can be expressed as a fraction (e.g., 41567/100000)
... not irrational for the same reason
... not whole (obviously)
... not integer (obviously)

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3 years ago

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