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natta225 [31]
3 years ago
8

by 14 1 4 each week for a number of weeks, w . He writes the expression 20(14) 20 ( 1 4 ) w to find the amount of radioactive su

bstance remaining after w weeks. Autumn starts with 5 5 milligrams of a radioactive substance. The amount of the substance decreases by 50% 50 % each week for a number of weeks, w . She writes the expression (1−0.5) ( 1 - 0 . 5 ) w to find the amount of radioactive substance remaining after w weeks. Use the drop-down menus to explain what each part of Nick's and Autumn's expressions mean.
Mathematics
1 answer:
erastovalidia [21]3 years ago
8 0

Answer:

1/2 ^w : decay factor after w weeks

hope this helps

Step-by-step explanation:


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Can somebody plz help me [-5+(-7)]^2-(7+3)^2
Firdavs [7]

Answer:

\boxed{44}

Step-by-step explanation:

[-5+(-7)]^2-(7+3)^2

Resolving Parenthesis

(-5-7)^2-(10)^2\\(-12)^2-100\\144-100

=> 44

8 0
4 years ago
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how many numbers did bill wrote if he wrote all the natural numbers between w and v not including w and v
dexar [7]

Answer:

v - w - 1

Step-by-step explanation:

Try an experiment with a small, specific set of numbers like:

4, 5, 6, 7, 8, 9, 10   w = 4 and v = 10.

There are 5 numbers in the list, not counting the first and last.  Is this related to the difference between v and w?  v - w = 6, one more than 5.

The number of natural numbers between  w  and  v, not including  w  and  v, is v - w - 1.

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3 years ago
What does point A represent on the graph?
OverLord2011 [107]

Answer:

Do you have a picture

Step-by-step explanation:

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3 years ago
Change 2.6 from decimal to fractions show explanation
noname [10]

Answer:

Step-by-step explanation:

The 2 in 2.6 is in the ones place so we know that it equals 200. The 6 in 2.6 is in the tenths place so we know that it equals 60.  Add 200 with 60 to get 260/10. The denominator is 10 because 2.6 only extends to the tenths place.

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2 years ago
Point c is the center of dilation. line segment b a is dilated to create line segment b prime a prime. the length of c a is 4. t
pychu [463]

The scale factor of the dilation of line segment ba for which the center of dilation is C, is 5.

<h3>What is the dilation of the figure?</h3>

Dilation of a figure, means the transformation of the figure. The factor by which the given figure dilated, called the scale factor of dilation.

Point c is the center of dilation. Line segment BA is dilated to create line segment b prime, a prime.  The image of the given problem is attached below. The length of CA is 4.

CA=4

The length of a prime is 16.

AA'=16

The new dimension will be,

CA'=CA+AA'\\CA'=4+16\\CA'=20

Now, the scale factor is the ratio of the new dimension to the original dimension. Thus, the scale factor of the dilation is,

r=\dfrac{20}{4}\\r=5

This will be the same for the line segment BA. Thus, the scale factor of the dilation of line segment ba for which the center of dilation is C, is 5.

Learn more about the dilation of the figure here;

brainly.com/question/3457976

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3 years ago
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