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dem82 [27]
2 years ago
7

Please answer all the columns by and help me understand

Mathematics
1 answer:
lutik1710 [3]2 years ago
7 0

Answer:

ez 15 points

Step-by-step explanation:

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A classroom is 30 feet long and 30 feet wide. The ceiling is 10 feet above the floor. What is the volume of the classroom?
ser-zykov [4K]
If you would like to know the volume of the classroom, you can calculate this using the following steps:

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4 0
3 years ago
If x + y = x y = 5 then x ^2 y + X Y ^ 2 equals​
VikaD [51]

Answer:

25

Step-by-step explanation:

Note x^2y + xy^2 = xy(x+y)

We know xy = 5 and x+y = 5, so

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3 0
3 years ago
A rectangular field has an area 28800 sq.meter.its length is twice as long as its width.what is the length of its sides?
AVprozaik [17]
Let 
x---------> the length side of rectangle
y---------> the width side of rectangle

we know that
x=2y-----> equation 1
area=x*y-------> 28800=x*y------> equation 2
substitute 1 in 2

28800=[2y]*y-----> 28800=2y²-------> y²=14400------> y=120 m
x=2*y----> x=2*120------> x=240 m

the answer is
the length side of rectangle is 240 m
 the width side of rectangle is 120 m


5 0
3 years ago
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