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katovenus [111]
3 years ago
6

Find the product of 51 and -2.5

Mathematics
2 answers:
bearhunter [10]3 years ago
5 0

Answer:

-127.5

you have to multiply -2.5 with 1

then -2.5 with 50

then add

you get -127.5

Elodia [21]3 years ago
3 0

Answer: -127.5

Hope this helps!

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You have a 1200-foot roll of fencing and a large field. you want to make two paddocks by splitting a rectangular enclosure in ha
romanna [79]
Let width = w
Let length = l
Let area = A
3w+2l=1200
2l=1200-3w
l=1200-3/2
A=w*l
A=w*(1200-3w)/2
A=600w-(3/2)*w^2
If I set A=0 to find the roots, the maximum will be at wmax=-b/2a which is exactly 1/2 way between the roots-(3/2)*w^2+600w=0
-b=-600
2a=-3
-b/2a=-600/-3
-600/-3=200
w=200
And, since 3w+2l=1200
3*200+2l=1200
2l = 600
l = 300
The dimensions of the largest enclosure willbe when width = 200 ft and length = 300 ft
check answer:
3w+2l=1200
3*200+2*300=1200
600+600=1200
1200=1200
and A=w*l
A=200*300
A=60000 ft2
To see if this is max area change  w and l slightly but still make 3w+2l=1200 true, like
w=200.1
l=299.85
A=299.85*200.1
A=59999.985
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360 is the anwer because i multipled 40 white cars by 9 times yellow car to get answer 40×9=360
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Read 2 more answers
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Answer
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nataly862011 [7]
M= 2.8

Alternate form:

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Step-by-step explanation:

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