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ziro4ka [17]
3 years ago
7

X^2 -18x +81=0 factor it

Mathematics
1 answer:
nasty-shy [4]3 years ago
6 0

Answer:

x=9

Step-by-step explanation:

81 is the product of -9 & -9. -9-9=-18. Therefore, (x-9)^2=0, and you get that x=9.

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a square swimming pool has a cement sidewalk around it. The sidewalk is the same width all the way around. The outside perimeter
VLD [36.1K]

Answer:

175 square feet

Step-by-step explanation:

the area of the whole thing is 400 ft. (20 x 20=400)

i got the 20 from the perimeter b/c 20+20+20+20=80

then subtract the area of the pool from 400 to get 175.

6 0
2 years ago
What’s the answer????
BlackZzzverrR [31]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
together Xavier,Yolanda,and Zachary have $4.44 . if each person has the same amount , how much money does each person have?
Anarel [89]
$1.48 because $4.44 divided by 3 equals $1.48
4 0
3 years ago
Read 2 more answers
1 in/2.54 cm = 90 in/? cm
nirvana33 [79]
1/2.54 = 90/x

Cross multiply
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7 0
3 years ago
Find the difference of 1-3/8
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1-3=-2 so -2/8 is -1/4 so negative one fourth
3 0
3 years ago
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