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2 years ago

Hhhhhhhhhhhhhhhheeeeeeeeeeeeeeeelllllllllllllllllllllppppppppppppp

Mathematics

2 answers:

m_a_m_a [10]2 years ago

7 0

Literally whatever number is in the parenthesis, if it’s negative like -4 then you could down 4 lines of squares and put a dot. if it’s positive then go up

NikAS [45]2 years ago

6 0

What the person above me said :(()

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Step-by-step explanation:

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Solve for x. Write your answer as “x=__”

BabaBlast [244]

Answer:

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2 years ago

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

jeka94

Answer:

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:

$\displaystyle{\dfrac{x^2}{45}+\dfrac{5y^2}{45}=\dfrac{45}{45}}\\\\\displaystyle{\dfrac{x^2}{45}+\dfrac{y^2}{9}=1}$

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

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1 year ago

A price decreases from $254 to $213.36 . What is the percent of change?

sattari [20]

16% discount, this is because 213.36-254 over the original price (254) times 100% equals -16%

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2 years ago