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love history [14]
3 years ago
5

What is the equation of a circle with center (2,-8) and radius 9?

Mathematics
2 answers:
oksian1 [2.3K]3 years ago
7 0

Answer:

x2+y2-4x+16y-13

Step-by-step explanation:

center (h,k)=2,-8

radius(r)=9

we know

(x-h)2+(y-k)2=r2

now insert above given information

(x-2)2+(y+8)2=9×9

leonid [27]3 years ago
4 0

Answer:

9^2= (x+2)^2+(y+8)^2

Step-by-step explanation:

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

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Please help.
m_a_m_a [10]

Answer:

26.2

Step-by-step explanation:

PQ/QR = 8/16 = 0.5

tan(26.6) = 0.5

7 0
3 years ago
The diameter of a flour tortilla is 12 inches. What is the total area of two tortillas to the nearest hundredth?
olga2289 [7]

the diameter of two tortillas would be 6, since 12+12=24. the diameter of 24 is 6, so that would be your answer....

5 0
2 years ago
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The total cost for tuition plus room and board at State University is $2,584.00. Tuition costs $100 more than twice room and boa
liq [111]

Answer:

$1756

Step-by-step explanation:

1.  More = Addition

2. Twice = Multiplication by 2

3. Tuition costs $100 more than twice room and board

   Tuition = 2x + 100

   $2584 = (2x + 100) + x

   $2584 = 3x + 100

4. Subtract 100 on both sides: $2484 = 3x

5. Divide both sides by 3: $828 = x

6. Plug it in to the tuition equation: Tuition = 2(828) + 100

                                                                       = $1756

Check Work: (828*2) + 100 = $1756

                      $1756 + 828  = $2584

7 0
2 years ago
Please help me with this.
svlad2 [7]

The correct answer is C.) (y|y > -4).

In order to find the range, we look for the possible numbers that y can be. In this case, you'll see the lowest the number goes is -4 and it continues up forever. Therefore, the answer is that y has to be greater than -4.

6 0
2 years ago
List all the prime factor of 60
Karolina [17]

Answer: 2,3,5

Step-by-step explanation:

the prime factorization of 60 is 2 × 2 × 3 × 5, which can be written as 2 squared × 3 × 5.

7 0
2 years ago
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