3 years ago

Help please pretty please

Mathematics

1 answer:

Blababa [14]3 years ago

7 0

Answer:

There are n+1 terms in (a+b)^n.

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3 years ago

What is the center of the ellipse x2+5y2–45=0?

jeka94

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Center is at (0,0)

Step-by-step explanation:

An equation of ellipse in standard form is:

$\displaystyle{\dfrac{(x-h)^2}{a^2}+\dfrac{(y-k)^2}{b^2} = 1$

Where center is at point (h,k)

From the equation of $\displaystyle{x^2+5y^2-45=0}$ . First, we add 45 both sides:

$\displaystyle{x^2+5y^2-45+45=0+45}\\\\\displaystyle{x^2+5y^2=45}$

Convert into the standard form with RHS (Right-Hand Side) equal to 1 by dividing both sides by 45:

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Therefore, the center of ellipse is at (0,0) since there are no values of h and k.

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2 years ago