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agasfer [191]
3 years ago
13

A radioactive substance decays according to the equation y=30( .88 )^x, where y is measured in grams of the radioactive substanc

e and x is years. In how many years will there be about half of the original amount left of this radioactive substance?
Mathematics
1 answer:
Gelneren [198K]3 years ago
7 0
The answer is: 4 idk.
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I need help I have 10 more minutes until this quiz ends plz help
Vladimir [108]

Answer:

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Step-by-step explanation:

6 0
2 years ago
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The valume of (3-5)4(2)-16+2
rusak2 [61]

Answer:

-30

Step-by-step explanation:

Calculate the difference:

(3-5)x4x2- 16 plus 2

Result: -2x4x2- 16 plus 2

calculate the product...

Result: -16-16 plus 2

Calculate the sum or difference

ANSWER:  -30

8 0
3 years ago
The length of a rectangle is 4 meters less then twice its width. the area of the rectangle is 70 meters squared. Find the width
Travka [436]

Answer:

yes es correcto ya que 70 es igual a 4 metros

8 0
3 years ago
The APR of Percy’s savings account is 4.4%, and interest is compounded monthly. If the principal in Percy’s savings account were
lutik1710 [3]

Answer:$11,389.39

Step-by-step explanation:

(Apex)

8 0
2 years ago
Use the substitution method to solve the system of equations. Choose the correct ordered pair. x + y = 11 -x = -y - 9
suter [353]
x+y=11 \\
-x=-y-9 \\ \\
\hbox{substitute the second equation by -1} \\ \\
x+y=11 \\
x=y+9 \\ \\
\hbox{substitute y+9 for x in the first equation} \\ \\
y+9+y=11 \\
2y=11-9 \\
2y=2 \\
y=\frac{2}{2} \\
y=1 \\ \\
x=y+9 \\
x=1+9 \\
x=10 \\ \\
(x,y)=(10,1)

The answer is B.
5 0
2 years ago
Read 2 more answers
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