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Gwar [14]
3 years ago
8

I need help again PLEASE

Mathematics
2 answers:
hram777 [196]3 years ago
8 0

Answer:

3 is d

4 is c

Step-by-step explanation:


mash [69]3 years ago
7 0

Number 3: D


Number 4: C

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The rate at which a quantity of a radioactive substance decays is proportional to the quantity of the substance. The constant of
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Answer:

\frac{dN}{dt} = λN           N(0) = 6

N(t) = N₀e^(λt)

Applying the inital value condition

N(t) = 6e^(λt)

Step-by-step explanation:

Summarizing  the information briefly and stating the  variables in the problem.

t = time elapsed during the decay

N(t) = the amount of the radioactive substance remaining after time t

λ= The constant of proportionality  is called the decay constant or decay rate

Given the initial conditions

N(0) = N₀ = 6

The rate at which a quantity of a radioactive substance decays (\frac{dN}{dt}) is proportional to the quantity of the substance (N)  and λ is the constant of proportionality  is called the decay constant or decay rate :

\frac{dN}{dt} = λN          

N(t) = N₀e^(λt) ......equ 1

substituting the value of  N₀ = 6 into equation 1

N(t) = 6e^(λt)

3 0
3 years ago
17th October 2021 is Sunday. Which the day of the week will it be in 17th October 2011​
V125BC [204]

Answer:

Monday

Explanation:

It goes forward by one day:

2011 => 2021

Sunday -> Monday

3 0
2 years ago
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I'm Stuck, please help.
GarryVolchara [31]
Hi there!

Let me help you out a bit here. What we need to do is subtract the area of the smaller square from the area of the larger square. To do this, we first need to find the length of one of the larger sides. Since the outer polygon is a square, we can use the 45-45-90 relationship to determine that each side of the larger square is equal to 9 \sqrt{2}. Next, we can do the same thing for the smaller square, determining that one outer side of the smaller square is equal to 4 \sqrt{2}. To figure out the area of both squares, we need to square each of the outer lengths. This gives us 162 for the bigger square and 32 for the smaller square. Now, all we need to do is subtract 32 from 162. This gives us a value of 130cm^2 for the shaded area.

Hope this helps!! :)
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4 years ago
2. Let Y denote the average starting salary for 2014 U.S. college graduates, measured in dollars. Suppose that the average annua
Dafna11 [192]

Answer:

Average salary: 56

Standard deviation of the salary: 8

Step-by-step explanation:

$56,000 dollars is 56 thousand dollars.

$8,000 is 8 thousand dollars.

The mean is the average. So the average, measured in thousands of dollars, is 56.

The standard deviation is $8,000. So, the standard deviation measured in thousands of dollars, is 8.

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<h3>You can make a square by two congruent right angles triangle. </h3>
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