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ratelena [41]
3 years ago
14

Write the equation of the circle with center at (-2, 1), radius of 5.

Mathematics
1 answer:
emmasim [6.3K]3 years ago
5 0

Answer:

(x+2)^2+(y-1)^2=5^2

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11. A wave has a wavelength of 125 meters is moving at a speed of 20 m's. What is its frequency?
olga_2 [115]

Answer:

.16hertz

Step-by-step explanation:

3 0
3 years ago
Write each improper fraction as a mixed number. 9/4. 8/3. 23/6. 11/2. 17/5. 15/8. 33/10. 29/12.
yanalaym [24]

Aloha~! My name is Zalgo and I am here to provide a bit more knowledge to you today. The following Improper Fractions have been changed into Mixed Numbers (and also into decimals because I like Math :3):

  • 9/4 - 2.25 - 2 4/1
  • 8/3 - 2.67 - 2 2/3
  • 23/6 - 3.83 - 3 5/6
  • 11/2 - 5.5 - 5 1/2
  • 17/5 - 3.4 - 3 2/5
  • 15/8 - 1.875 - 1 7/8
  • 33/10 - 3.3 - 3 3/10
  • 29/12 - 2.416 - 2 5/12

I hope that this info helps! :D

"Stay Brainly and stay proud!" - Zalgo

(By the way, can you mark me as Brainliest? I'd greatly appreciate it! Mahalo~! XP)

7 0
3 years ago
Read 2 more answers
what positive number satisfies the condition that twice the number minus three times the reciprocal of the number is equal to 1?
marshall27 [118]
Solve:

"<span>twice the number minus three times the reciprocal of the number is equal to 1."
                                                     3(1)
Let the number be n.  Then 2n - ------- = 1
                                                       n

Mult all 3 terms by n to elim. the fractions:

2n^2 - 3 = n.  Rearranging this, we get 2n^2 - n - 3 = 0.

We need to find the roots (zeros or solutions) of this quadratic equation.

Here a=2, b= -1 and c= -3.  Let's find the discriminant b^2-4ac first:

disc. = (-1)^2 - 4(2)(-3) = 1 + 24 = 25.

That's good, because 25 is a perfect square.
                -(-1) plus or minus 5         1 plus or minus 5
Then x = ------------------------------ = --------------------------
                            2(2)                                  4

x could be 6/4 = 3/2, or -5/4.

You must check both answers in the original equation.  If the equation is true for one or the other or for both, then you have found one or more solutions.</span>
8 0
3 years ago
FCD=x+41, BCF=x+78, BCD=95. Find x
Lorico [155]
You'll set the two expressions equal to 95.
So 2x+119=95
Then 2x=-24
Finally x=-12
5 0
3 years ago
Alma had four ants in her ant farm. She found three more ants outside and put them in the ant farm. She wanted to know how many
olga2289 [7]

Answer:

42

Step-by-step explanation:

4+3=7 7x6=42

5 0
3 years ago
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