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Nezavi [6.7K]
3 years ago
14

015: Rectangle homework

Mathematics
1 answer:
yaroslaw [1]3 years ago
7 0

Answer:

Length: 6 ft

Width: 4 feet

Step-by-step explanation:

Length: L

Width: 2L - 8

2L + 2(2L - 8) = 20

2L + 4L - 16 = 20

6L = 36

L = 36/6

L = 6

W= 2(6)-8 = 4

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tanya purchased 4 hamners for $11.00 each and 7 scewdrivers for $6.65 each write an expresion for the total cost of the tools.th
rewona [7]
X=numbers of hammers
y=numbers of  scewdrivers
f(x,y)= total cost in $

f(x,y)=11x+6.65y

f(4,7)=4(11)+6.65(7)=44+46.55=90.55

Sol: an expresion for the total cost of the tools is f(x,y)=11x+6.65 y; 
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y= number of  scewdrivers.
The total cost is $90.55
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Answer:

It is actually A

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AVprozaik [17]

Answer:

False

Step-by-step explanation:

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let Y = how long they lived.

where the x-values are the values of the deviations of co-ordinates X from Xₙ, their mean value and the y-values are the values of the deviations of co-ordinates Y from Yₙ, their mean value.

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Between these values, the smaller the value of r, the less is the amount of correlation which exists.

Generally, values of r in the ranges 0.7 to 1 and −0.7 to −1 show that a fair amount of correlation exists.

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the answer is false because there are other reasons that determined longevity of life apart from meat consumption.

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3 years ago
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Cloud [144]

Answer:

i got 20 hours

Step-by-step explanation:


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Answer:

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3 years ago
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