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arlik [135]
3 years ago
10

The graph shows the mass of a radioactive substance as a function of time

Mathematics
2 answers:
lubasha [3.4K]3 years ago
7 0

The Correct answer to your

question is 45 g. if you are wondering how I know I just did the 6.05 test in Algebra I (K12). I hope I helped you Today!

Simora [160]3 years ago
5 0
To know the initial amount of the radioactive substance, you should read the graph in the y - axis when the x = 0, because at x = 0 this means the intial point of the graph or the initial amount of the substance. so at x  = 0 the y = 45 so the initial amount is 45 g
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I need help solving this
Stolb23 [73]

Step-by-step explanation:

So in the equation given, y = 2x - 3

you substitute x for whats given in the table in the x column.

Example

In the graph the first number under the x colum is -1.

y = 2x - 3 in the equation you take out x and put -1.

So now the equation becomes y = 2 × -1 - 3.

Using bedmas to solve the question you should get -5

Which now means y = -5

To plot the point now x would be -1 and y would be -5 (-1, -5)

Same thing for the second number in the x Column.

y = 2 × 1 - 3 which equals -1

To plot it

x = 1 y = -1. (1, -1)

And for the last number 3.

Agai. You substitute x for 3 which makes the equation y = 2 × 3 - 3

this gives you 3 and to plot it

x would be 3 and y would be 3

4 0
3 years ago
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lesya692 [45]

Step-by-step explanation:

m < QRS = m < URS + m < QRU

30x - 4 = 60° + 15x - 4

15x = 60°

X = 4°

<u>m < QRS</u> = 30 * 4 - 4 = <u>116°</u>

8 0
3 years ago
You have 15 pennies in your pocket. Of those pennies, 3 are Canadian. Suppose you pick a penny out of your pocket at random. Fin
den301095 [7]
The best and most correct answer among the choices provided by your question is the fourth choice or letter D. The probability is 4/5.

<span>P ( canadian)= 3/15 = 1/5
On the other hand, P (not canadian) = 1 - 1/5 = 4/5</span>

I hope my answer has come to your help. Thank you for posting your question here in Brainly.
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allsm [11]
∠DOC is the average of the given angle values,
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∠DOB is the supplement to that,
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The appropriate choice is
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3 years ago
Name three things that can be easily identified by the equation of a parabola in vertex form
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Golden Gate Bridge, Mountains, Roller Coaster
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