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zimovet [89]
3 years ago
7

Please help me with this question

Mathematics
1 answer:
iris [78.8K]3 years ago
6 0
A= \pi r^2  \ \ \ and \ \ \ C=2 \pi r \ \ \ \ \to \\  \\  \cfrac{\pi r^2 }{2 \pi r}= \cfrac{22}{1}    \ \  \ \ \to \ \ \ \ \    \cfrac{ r }{ 2}= \cfrac{22}{1} \ \  \ \ \to \ \ \ \ \ r=22*2=44 \ cm \\  \\  \\  C=2 \pi r=2*3.14*44=276.32  \ cm

Answer is 276.32 cm
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enyata [817]

Step-by-step explanation:

Rs 720

Cost of 1 m of cloth = 450/5= Rs 90

Cost of 8 m of cloth= 90*80= Rs 720

7 0
3 years ago
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obtain the equation of two points passing of lines 4x-3y-1=0 and 2x-3y+3=0 and equally inclined to the axes​
klasskru [66]

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​

=±1

⇒λ=  

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Was this answer helpful

8 0
2 years ago
in a class of 37 students,the number of students who like martial art only is double than the number of students who like athlet
yulyashka [42]

Answer:

number of students who like Athletics only = x = 10 students

number of students who like marshal arts only = 2x = 20 students

Step-by-step explanation:

In a class of 37 students, the number of students who like marshal arts only is

double than the number of students who like athletics only. If 3 students like both

and 4 like none of the games, find out how many students like:

i. Marshal arts

ii. Athletics​

Total students in the class = 37

number of students who like Athletics only = x

number of students who like marshal arts only = 2x

Number of students who like both = 3

Number of students who like none = 4

Total = athletics + marshal art + both + none

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x = 30/3

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= 2(10)

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5 0
3 years ago
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attashe74 [19]
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STEPS:

Step-1 : Multiply the coefficient of the first term by the constant 81 • 64 = 5184

Step-2 : Find two factors of 5184 whose sum equals the coefficient of the middle term, which is -144 .

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -72 and -72
81u2 - 72u - 72u - 64

Step-4 : Add up the first 2 terms, pulling out like factors :
9u • (9u-8)

Step-5 : Add up the four terms of step 4 :
(9u-8) • (9u-8)
Which is the desired factorization



5 0
1 year ago
Simplify the following: (-83)2​
Anika [276]
The answer is -166, your welcome
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3 years ago
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