3 years ago

Which situation represents a proportional relationship?

Mathematics

1 answer:

faust18 [17]3 years ago

4 0

Answer:

I think Its D

Step-by-step explanation:

Not sure tho

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AveGali [126]

K=8k+28

subtract 8k from both side

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divide both side by -7

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4 years ago

A drop of oil makes a circular ring in a water puddle. The radius of the oil ring expands at 1.5 cm per second. If r(t)=1.5t and

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Answer:

$a(t) =n(0.25t^2)$

Step-by-step explanation:

Given

$r(t) = 0.5t$

$a(r) = nr^2$

Required

Determine the area in terms of time

From the question, we have:

$r(t) = 0.5t$ -> radius per time

and

$a(r) = nr^2$ --> area from radius

The interpretation of the question is to find the composite function: a(t)

If $a(r) = nr^2$ , and $r(t) = 0.5t$ , the

Substitute 0.5t for r

$a(t) =n(0.5t)^2$

$a(t) =n*0.25t^2$

$a(t) =n(0.25t^2)$

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3 years ago

Q # 13 please help me

Ede4ka [16]

It is false. Since you don't know what is the variable equal to. But multiplication can't be in associative property.

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Vadim26 [7]

Answer:

Step-by-step explanation:

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