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3 years ago

A-b=12 ab=14 find a2 +b2

Mathematics

1 answer:

xxMikexx [17]3 years ago

6 0

Answer:

172

Step-by-step explanation:

(a - b)² = a² - 2ab + b², hence

a² + b² = (a - b)² + 2ab = 12² + (2 × 14) = 144 + 28 = 172

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Suppose a rabbit population of 10 rabbits triples every month. Write and solve a function for how many rabbits will exist after

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Answer:

Step-by-step explanation:

10 rabbits

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3 years ago

Biologists have found that the number of chirps some crickets make per minute is related to temperature. the relationship is ver

aalyn [17]

Answer:

It is $74.24$ degrees Fahrenheit when the crickets are chirping $150$ times a minute.

Variables $x = Chirps$ and $y = Degrees$

y-intercept $= 38.24$

slope $= 0.24$

Step-by-step explanation:

As the chirps are $124$ times per minute for $68$ degrees Fahrenheit we will consider it in $(x_1,y_1) = (124,68)$ .

Now when the chirps are $172$ times and temperature is $80$ degrees we consider it $(x_2,y_2) = (172,80)$ .

To find the slope we can use point-slope formula.

Where $m$ is the slope and $m=\frac{y_2-y_1}{x_2-x_1} =\frac{80-68}{172-124}= 0.24$

To find y-intercept we will plug out the value of slope in $y=m(x)+b$ choosing point $(x_1,y_1) = (124,68)$ .

So $b=y-m(x) =68-124(0.24) =68-29.76=38.24$

And the equation is $y=0.24(x)+b$

To calculate temperature for $150$ chirpings we have to plug $x=150$ and $b=38.24$ in our above equation which is in form of $y=m(x)+b$

$y=0.24(x)+b$

$y=0.24(150)+38.24=74.24\approx 75$ degrees Fahrenheit.

Finally we have :

Temperature $74.24$ degrees Fahrenheit.

With variables $x = Chirps$ and $y = Degrees$

y-intercept $= 38.24$ and

slope $= 0.24$

6 0

3 years ago

The area of a parallelogram is 18 square units.one side of the parallelogram is 24 units long.The other side is 6 unit long. whi

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Answer:

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Step-by-step explanation:

We know that Area = base * height. If the base is 24, then the height could be 18 / 24 = 3 / 4. If the base is 6, then the height could be 24 / 6 = 4.

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3 years ago

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babunello [35]

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3 years ago

Im having math trouble please help

Marysya12 [62]

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Step-by-step explanation:

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