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Archy [21]
3 years ago
8

Sean is conducting an experiment with an isotope of a particular element that has a half life of 4 hours. He begins with a sampl

e of the isotope with a mass of 92 grams. He then measures the mass of the object every hour. What is the approximate mass of the sample after 20 hours. Choices are: A: 2.875 B:2,944 C:1.4375 D:0.0313
Mathematics
1 answer:
Alex Ar [27]3 years ago
5 0

Answer:

/??

Step-by-step explanation:

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Makayla has 2 yards of ribbon to use for a craft project she cuts the ribbon into pieces that are 1/4 yard long how many pieces
olga55 [171]

Answer:

8

Step-by-step explanation:

2/ 1/4 = 8

6 0
3 years ago
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Find the midpoint between two points on a coordinate plane whose coordinates are (5,7) and (-3,1)
hoa [83]

Step-by-step explanation:

Mid point formula ,

x = (x1+x2)/2 , y = (y1+y2)/2

x = 1 , y = 4

therefore ,midpoint is (x, y)= (1,4)

4 0
3 years ago
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15 Points!! Hurry Help Plzz!!! Will Give Brainliest!!!
svetoff [14.1K]

Answer:

<em>C.</em>

Step-by-step explanation:

<em>I already used this example but...</em>

<em>Converse. Switching the hypothesis and conclusion of a conditional statement. For example, the converse of "If it is raining then the grass is wet" is "If the grass is wet then it is raining."</em>

<em> Note: As in the example, a proposition may be true but have a false converse.</em>

<em>It has to have the same meaning, but in a different format, so the only answer that follows this rule is C.</em>

<em>Hope this helps, have a good day. c;</em>

8 0
4 years ago
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I need help solving them and quick cause I don’t have a lot of time
riadik2000 [5.3K]
A: x = 2.4
b: m = 9.6
c: c = 2 5/12
d: m = 3.6
e: c = 6.6
7 0
3 years ago
What is the graph of f(x)=x^2-2x+3
Neko [114]

Answer:

The graph in the attached figure

Step-by-step explanation:

we have

f(x)=x^{2}-2x+3

This is the equation of a vertical parabola open upwards

The vertex is a minimum

The vertex is the point (1,2)

The y-intercept is the point (0,3)

The function does not have x-intercepts

see the attached figure

7 0
3 years ago
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