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jok3333 [9.3K]
3 years ago
10

Is -56,912 a irrational or rational number

Mathematics
1 answer:
kow [346]3 years ago
7 0
I believe it's a rational number, since it's an integer.
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The equation of a circle is (x + 3)2 + (y – 5)2 = 81. Determine the coordinates of the center of the circle and the length of th
Nataly_w [17]

Answer:

The center of the circle is (-3 , 5) and the length of the radius is 9 units

Step-by-step explanation:

* Lets revise the standard form of the equation of the circle

- The center-radius form of the circle equation is in the format

 (x – h)² + (y – k)² = r², where the center is the point (h, k) and

 the radius is r.

- This form of the equation is helpful, because you can easily find

  the center and the radius.

* Now lets solve the problem

- The equation is (x + 3)² + (y - 5)² = 81

- By comparing the two equations

∵  (x – h)² + (y – k)² = r² and  (x + 3)² + (y - 5)² = 81

# x - h = x + 3

∴ -h = 3 ⇒ divide both sides by -1

∴ h = -3

# y - k = y - 5

∴ k = 5

# h and k are the coordinates of the center of the circle

∴ The center of the circle is (-3 , 5)

# r² = 81 ⇒ take √ for both sides

∴ r = 9

∴ The length of the radius = 9 units

* The center of the circle is (-3 , 5) and the length of the radius is 9 units

3 0
3 years ago
A repairman charged $93.06. The price included 2 hours of labor and a $40 service charge.
a_sh-v [17]
I think the answer is 26.53

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Find the volume.<br> Pls NO links
Vaselesa [24]

Answer:

7*8*4/2

Step-by-step explanation:

112

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49 degree is the answer
tanø = 46/40
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3 years ago
Anna has 1/2 pound of trail mix. She evenly divided the trail mix into 4 bags. How much is in each bag
trasher [3.6K]

Answer:

 

1/8 pound of trail mix in each bag.

Step-by-step explanation:

She divides it into  bags

4 1/2 ÷ 4 = 1/2 x 1/4 = 1/8 pound

3 0
3 years ago
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