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Sliva [168]
3 years ago
6

Select all the equations that are true. Explain your thinking.

Mathematics
1 answer:
Flura [38]3 years ago
8 0

Answer:

A,D,E,

Step-by-step explanation:

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Write the equation of a vertical ellipse with a major axis of 20, a minor axis of 12, and a center of (6, 3)
maksim [4K]

Answer:

The equation of a vertical ellipse is  \frac{(x-6)^2}{100} + \frac{(y-3)^2}{36}   = 1\\

Step-by-step explanation:

Here, given:

Length of major axis:  20

⇒ 2 a  = 20  , or , a = 10

Length of minor axis:  12

⇒ 2 b  = 12  , or , b = 6

Also, center (h,k)  = (6,3)

Now, STANDARD EQUATION OF ELLIPSE :

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

Now, substituting the values, a, b , h and k in above expression, we get:

\frac{(x-6)^2}{10^2} + \frac{(y-3)^2}{6^2}   = 1\\

or, \frac{(x-6)^2}{100} + \frac{(y-3)^2}{36}   = 1\\

Hence, the equation of a vertical ellipse is  \frac{(x-6)^2}{100} + \frac{(y-3)^2}{36}   = 1\\

3 0
3 years ago
It takes 4 people 2 days to paint a wall. How long would it take if we got 8 people to do it?
Slav-nsk [51]

Answer:

if it takes 4 people for 2 days

4+4= 8

so it would only take 8 people for 1 day

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3 years ago
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Nadusha1986 [10]
Answer: 2x^2

The three terms are
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5
as they are separated by a plus sign. You can think of it as 2x^2 + (-3x) + 5 if you want. The quadratic term is the term with the exponent of 2
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Y=6(x-7)^2……. any one know this ?
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Step-by-step explanation:

Use the foil method to solve (x-7)^2 and then multiply your result by 6.

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Juana went shopping with $ 50 and spent $ 45. What percentage of her money did she spend?
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Step-by-step explanation:

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