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Scilla [17]
3 years ago
8

I forgot how to do this n they didn’t put an example help me lol

Mathematics
1 answer:
lyudmila [28]3 years ago
3 0

Answer:

60m^2

Step-by-step explanation:

First, find the area of the square as it the missing piece wasn't missing.

    8 x 9 = 72m^2

Then, find the area of the missing section.

    3 x 4 = 12m^2

Finally, subtract 12m^2 from 72m^2 and you get 60m^2

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Please help me and show your wprk
stellarik [79]
This is how I find the GCF.

I find the prime factors. 

63/3 = 21
21/3 = 7
7/7 = 1 

81/3 = 27
27/3 = 9
9/3 = 3
3/3 = 1

Then I find the common prime factors:
63: 3 x 3 x 7
81: 3 x 3 x 3 x 3 

Then I multiply the common prime factors:
3 x 3 = 9

The GCF for 63 and 81 (number 3) is 9. 

I bet you can use this method for all the other GCFs! :)

For this one, find the prime factors like before, and if there aren't any besides one, then it's a prime number. 

75/3 = 25
25/5 = 5
5/5 = 1
 
The prime factorization for 75 is 3 x 5 x 5

(I don't know the answer to 7, 8, 9, 10, 11, 12, 25, or 26, sorry!)


3 0
4 years ago
What would it cost Leopold to put decorative fencing along the top and bottom lengths of the fencing costs $2.25 per foot?
Ann [662]

270 dollars because 1440 divided by 12 equals 120. 120 times 2.25

is $270.000

5 0
3 years ago
Y4+5y2+9 factorise please help me​
Veronika [31]

\displaystyle\ y^4 +5y^2+9=(y^2+3)^2-y^2=(y^2-y+3)(y^2+y+3)

7 0
3 years ago
Read 2 more answers
Determine the y-intercept of 5x-6y=10
Tema [17]

Answer:

The y intercept of the equation is 10.

6 0
3 years ago
Read 2 more answers
In a chess club, 75% of the members are boys. Of these boys, 8% have hazel eyes. If 6 boys have hazel eyes, how many people are
boyakko [2]

Answer:

100

Step-by-step explanation:

let 'n' = # chess club members

6 = 3/4 · 8/100 · n

6 = 3/50n

3n = 300

n = 100

7 0
3 years ago
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