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maria [59]
3 years ago
9

The value of n is a distance of 1.5 units from -2 on a number line.

Mathematics
1 answer:
valina [46]3 years ago
4 0

Answer:

-3.5 and -0.5 would be the answers

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Given the polynomial expression 3x^2 + 3bx - 6x - 6b, factor completely.
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The answer is 3 (x+b) (x-2)



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2) The two rectangles shown are similar.
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Answer:

6\ cm

Step-by-step explanation:

First Rectangle:

length(l_1)=24\ cm\\\\Width(b_1)=9\ cm

Second Rectangle:

length(l_2)=16\ cm\\\\Let\ Width=b_2\ cm

Since\ these\ two\ rectangles\ are\ similar\\\\\frac{l_2}{l_1}=\frac{b_2}{b_1}\\\\\frac{16}{24}=\frac{b_2}{9}\\\\16\times 9=24\times b_2\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ cross\ multiplication\\\\b_2=\frac{16\times 9}{24}\\\\b_2=6\ cm

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A plot of 1/no2 versus time is linear. using this information, identify the factor by which the rate will increase in model (c)
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This is hard in mathematical language, but there is only this way to present it. Let us denote by A the consentration of the substance and by A' its rate.
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By differentiating, we get that A'=-b/(C+t)^2
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Step-by-step explanation:

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8 0
3 years ago
Read 2 more answers
Suppose it takes 18 hours for a pipe to fill a tank of water, if the tank
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Answer:

Step-by-step explanation:

Let the volume of tank be x

In 18 hours volume of tank filled = x

we have to find the volume of tank which is filled in 1 hours.

For that we divide LHS and RHS by 18

In 18/18 hours volume of tank filled = x/18

In 1 hours volume of tank filled = x/18

In 30 hours volume of tank emptied = x

we have to find the volume of tank which is emptied in 1 hours.

For that we divide LHS and RHS by 30

in 30/30 hours volume of tank filled = x/30

In 1 hours volume of tank filled = x/30

If tank is empty and one starts to fill it, two things will happen

it will start filling at rate of x/18 hours

But there is leak which will start to empty the tank at  x/30 hours

So , at any given time rate if filling of water will be rate of filling the tank- rate of emptying the tank

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in 1*45 hour volume of tank filled = x/45*45 = x

Thus, it will take 45 hours to fill the leaky tank  .

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