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Leno4ka [110]
3 years ago
8

What is the equation of a circle with center (2,-5) and radius 4?

Mathematics
2 answers:
azamat3 years ago
4 0

Answer:

(x - 2)² + (y + k)² = 4²

Step-by-step explanation:

To answer this, we insert the given into (center x-coordinate 2, center y-coordinate -5, radius 4) into the general formula for a circle with center at (h, k) and radius r:  (x - h)² + (y - k)² = r²  →  (x - 2)² + (y + k)² = 4²

Marrrta [24]3 years ago
3 0

The GENERAL equation for EVERY circle with its center at (A, B) and a radius of R is

(x - A)²  +  (y - B)²  =  R² .

So if you just stuff in the numbers given in this question, the equation of THIS circle is

<em>(x - 2)²  +  (y + 5)²  =  16</em>

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108 centimeters equal how many meters?
Sveta_85 [38]

Answer:

1.08 meters

Step-by-step explanation:

Divide by 100 to find this out. 108/100 = 1.08

You can remember this by knowing that the "centi-" prefix means 100 (technically, 100ths). Just like you probably already know 100 cents in a dollar (USD) or 100 years in a century. Even the "cent" in percent means per hundred. There are 100 centimeters in a meter. A centimeter is about as wide as your little finger. A meter is close to a yard.

7 0
1 year ago
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arsen [322]

Answer:

33.33%

Step-by-step explanation:

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3 years ago
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4 0
3 years ago
Mariana plans to visit an amusement park where she must pay for admission and purchase tickets to go on the rides. Mariana wants
Ivanshal [37]

Answer: The number 12 represents admission charge in Mariana's equation.

Step-by-step explanation:

As per given ,

Total cost = ( Charge per ticket) (Number of tickets) +  (Admission fees)  (i)

For x = Number of tickets, the total cost (c) for a day at the amusement park is given as

c = 1.50x + 12                                       (ii)

Here, 12 = Admission fees                 [Comparing (i) and (ii)]

Hence, the number 12 represents admission charge in Mariana's equation.

3 0
3 years ago
What is the quotient?<br> 7)<br> 126<br> А.<br> 16<br> B.<br> 17<br> С<br> 18<br> D<br> 19
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Answer:

C

Step-by-step explanation:

The quotient is 18

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