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notsponge [240]
3 years ago
15

How do you derive the equation of a circle? Help needed ASAP. 3 Questions after will also be needed.

Mathematics
1 answer:
Diano4ka-milaya [45]3 years ago
3 0
You have to know the coordinates of the center and the radius.
refer to this website for more information:
http://www.mathwarehouse.com/geometry/circle/equation-of-a-circle.php

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Translate into a mathematical expression 20% of a number​
soldier1979 [14.2K]

Answer:

.2x

Step-by-step explanation:

1. 20% is 0.2

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3. A number can be ANY NUMBER so it has to be a variable (x)

4. So .2 of x

5. putting a variable and a number right next together is a form of multiplication

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4 0
4 years ago
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ziro4ka [17]

1. x≥−1

2.x<4

3.x ≤ 1

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8 0
3 years ago
Can someone help me solve this problem?
ANTONII [103]
 If О is the center of a circle then:
<span>
OA = OB = OC = OD [radii]

AB = AH + HB = 15 + 15 = 30  </span>⇒  AB = CD
<span>
So </span>ΔAOB ≅ ΔCOD  [SSS rule] ⇒ x = OH = 16 units.

4 0
3 years ago
Corrine is setting out 24 plates on 6 tables for dinner she sets the same number of plates on each table how many plates does Ca
mezya [45]
26 divided by 6 = 4, so she put four plates on each table
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7 0
4 years ago
Whats the product of (3-2i) and (7+6i)?​
Alona [7]

Answer: the product is = 33+4i

Step-by-step explanation:

21+4i-12i^2

21+4i-12(-1) i^2=-1

21+4i+12

your answer would be 33+4i .

6 0
3 years ago
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