3 years ago

Peter was thinking of a number. Peter adds 6 to it, then doubles it and gets an answer of 48.5. What was the original numbe

Mathematics

1 answer:

Anna [14]3 years ago

7 0

The original number was 18.25 or 18 1/4

18.25 plus 6 is 24.25

24.25 times 2 is 48.5

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X2 + 4y2 = 36<br> The length of the minor axis is:

aleksandrvk [35]

Answer:

$length\ of \ minor\ axis = 6$

Step-by-step explanation:

Given:

The given equation is.

$x^{2} +4y^{2} =36$ -------------(1)

We write standard equation of an ellipse

$\frac{x^{2}}{a^{2}}+\frac{y^{2} }{b^{2} } = 1$ -------(2)

So equation 1 divided by 36 for standard form of an equation

$\frac{x^{2}}{36}+\frac{4y^{2} }{36} = \frac{36}{36}$

$\frac{x^{2}}{36}+\frac{y^{2} }{9} = 1$

So we compare equation 1 and equation 2.

we get $a^{2} =36$ and $b^{2} =9$

so $a =6$ and $b =3$

The length of the minor axis is $2\times b$

Here $b=3$ .

$length\ of \ minor\ axis = 2\times 3$

$length\ of \ minor\ axis = 6$

Therefore the length of the minor axis is 6

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bagirrra123 [75]

Answer:

The expression is not factorable with rational numbers.

p ^2 + p q − p ^3 − q ^2

Step-by-step explanation:

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The answer is
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