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mars1129 [50]
3 years ago
15

Is this equation standard form of an ellipse or circle?

Mathematics
1 answer:
Usimov [2.4K]3 years ago
4 0
The standard form equation for a circle is

(h-x)^2+(k-y)^2=r^2

where (h, k) is the center and r is the radius.

The standard form equation for an ellipse is

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

(center h, k and major and minor axes a and b)

This equation is standard form for neither, but might be general form for one.

-3x^2-3y^2-12x-12y+24=0 \\ -3(x^2+y^2+4x+4y)=-24 \\ x^2+4x+y^2+4y=8\ (complete\ the\ squares)\\ (x^2+4x+4)+(y^2+4y+4)=8+4+4\\ (x+2)^2+(y+2)^2=16 \\ Circle\ with\ radius\ 4\ and\ center\ (2,\ 2)
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Three ballet dancers are positioned on stage. If Lauren is 6 meters straight behind Alexa and
HACTEHA [7]

Answer:

d = 10 m

Step-by-step explanation:

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2 years ago
What is the probability of throwing a total score of 10 or less with two dice?​
FrozenT [24]

hope it helps

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3 0
3 years ago

Ilia_Sergeevich [38]

Answer:

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7 0
2 years ago
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after a 30% reduction, you purchase a dictionary for $30.80 what was the dictionary price before the reduction
liq [111]

Answer:

Well the original price would be $44

Step-by-step explanation:

So make an equation

Lets make X stand for the price before the deduction

so x-x(0.3)=30.80

Subtracting the X by x(0.3) would tell us the price, the 0.3 stands for 30 percent and we know its 30 percent of X so we subtract that since 0.3x would give the change

Now just solve the equation

You’ll get 44.

4 0
3 years ago
From net earnings of $740 per month, Lisa Jones must spend $200 for her portion of the rent on an apartment she shares with two
olga nikolaevna [1]
Percent means per one hundred...

p/100=200/740  multiply both sides by 100

p=100*200/740

p=20000/740 %

p=1000/37 %

p≈27.027 %

p≈27%  (to nearest whole percent)
8 0
3 years ago
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