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bogdanovich [222]
3 years ago
10

When the radius doubles, does the area of the circle double?

Mathematics
1 answer:
asambeis [7]3 years ago
7 0
Example
from pir^2 ro pi(2r)^2
pi(2r)^2=pi4r^2=4pir^2

basicaly we look for any no options and ones where second is 4 times first

B

pi2^2, if it is double, pi4^2



B


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Answer:

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The product of 9 and sum of a number x and 12
mr_godi [17]

Answer:

9(x + 19)

Step-by-step explanation:

Product is a multiplication key word where you'll usually always put parenthesis when multiplying, and where the keyword sum comes you'd add x and 12 for your equation :)

5 0
3 years ago
I need help on 5-7. Its a little confusing for me
Len [333]

Answer:

5. x = 5, y = 3

6. x = 0, y = 4

7. x = -1, y = 1

Step-by-step explanation:

5. substitute 3(value of y) into the equation y = x - 2:

=> 3 = x - 2

=> x = 5

6. substitute 0(value of x) into the equation y = x + 4:

=> y = 0 + 4

=> y = 4

7. substitute 1(value of y) into the equation y = 2x + 3:

=> 1 = 2x + 3

=> 2x = -2

=> x = -1

8 0
2 years ago
A manufacturer made 7,234 boxes of coffee stirrers.Each box contians 1000 stirrers.How many stirrers did they make?
mash [69]
To answer this, you multiple 1000 by 7,234 because each box comes with 1000, so if there are 7234 boxes, then you multiple the stirrers by the # of boxes
6 0
2 years ago
HEY FRIENDS ITS JAMIE!!! Hope ur day is good.
pav-90 [236]
THE SECOND ONE IS THE CORRECT ANSWER (B)

good luck
5 0
3 years ago
Read 2 more answers
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