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Eduardwww [97]
4 years ago
10

What are the coordinates of the focus of the conic section shown below?

Mathematics
1 answer:
Aleksandr [31]4 years ago
7 0
The answer is 
y^2-4x+4y-4=y^2+4y-4x-4=(y+2)²-4x - 8= 0
it is the same of    x + 2 = (1/4 ) (y+2)²
   
the main formula is  x-h= a (y-k)² so h=-2, k= - 2 and a=1/4
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The side lengths of a rectangle are all multiplied by 5. What happens to its perimeter?
stiv31 [10]

Answer:

The perimeter is multiplied by 5.

Step-by-step explanation:

Perimeter of a rectangle:

The perimeter of a rectangle with sides l and w is given by:

P = 2(l + w)

The side lengths of a rectangle are all multiplied by 5.

This means that l = 5l, w = 5w. So

P_M = 2(5l + 5w) = 2*5(l+w) = 10(l + w)

What happens to its perimeter?

The rate is:

\frac{P_M}{P} = \frac{10(l+w)}{2(l+w)} = 5

The perimeter is multiplied by 5.

8 0
3 years ago
what is the square root of 34? and -4/11? which set of numbers do they belong? whole number, integer natural number irrational o
viva [34]
The square root of 34 is just sqrt(34), or if you're looking for a rounded decimal answer, about 5.83. The square root of -4/11:
\sqrt{  \frac{-4}{11}  } \\
= \sqrt{  \frac{-1 * 4}{11}  } \\
= \frac{2i}{  \sqrt{11}  } \\
= \frac{2i\sqrt{11}}{11}
The square root of 34 is an irrational number. The square root of -4/11 is an imaginary number, or nonreal complex number.
5 0
4 years ago
What is the value of x in the equation 0.02x+0.7=0.8−0.03x ?
Arisa [49]
The value of x is 2
5 0
3 years ago
Does the fraction 1/2 make the equation +6/6=3/2 true?
dolphi86 [110]

Answer:

Yes

Step-by-step explanation:

1/2 + 6/6

= (1*3)/(2*3) + 6/6

= 3/6 + 6/6

= 9/6

= 3/2

So the fraction 1/2 make the equation true.

7 0
2 years ago
Read 2 more answers
125 a la octava potencia? <br>please lo necesito ​
telo118 [61]
No se si esté correcto, buena suerte!:)

8 0
3 years ago
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