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Allushta [10]
3 years ago
10

Which of the following is equivalent to the expression 2x + 3x +4x (x-2)

Mathematics
1 answer:
Alex787 [66]3 years ago
4 0

Answer:

a

Step-by-step explanation:

add and the take the parathesis out and there you have ur answer

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The diameter of a circle has endpoints P(-12, -4) and Q(6, 12).
nexus9112 [7]

9514 1404 393

Answer:

  (x +3)² +(y -4)² = 145

Step-by-step explanation:

The center of the circle is the midpoint of the given segment PQ. If we call that point A, then ...

  A = (P +Q)/2

  A = ((-12, -4) +(6, 12))/2 = (-12+6, -4+12)/2 = (-6, 8)/2

  A = (-3, 4)

The equation of the circle for some radius r is ...

  (x -(-3))² +(y -4)² = r² . . . . . . where (-3, 4) is the center of the circle

The value of r² can be found by substituting either of the points on the circle. If we use Q, then we have ...

  (6 +3)² +(12 -4)² = r² = 9² +8²

  r² = 81 +64 = 145

Then the equation of the circle is ...

  (x +3)² +(y -4)² = 145

3 0
3 years ago
-(19-2a^2)-57+4g^2 simplify, and please include step by steps thanks
Katyanochek1 [597]

Answer:

2(-17+a^2+2g^2)

Step-by-step explanation:

step1

3 0
3 years ago
Students took a typing test. The number of words per minute students could type are listed below. 40, 47, 25, 32, 48, 55, 33, 56
const2013 [10]

Answer:

50

Step-by-step explanation:

The median number is known as the middles number

The first step is to rearrange the set of numbers starting from the lowest

25, 32, 32, 32, 33, 40, 47, 47, 48, 55, 56

Hence the middle number is 50

8 0
3 years ago
Any altitude of an isosceles triangle is also a median of the triangle true or false ?
Svetach [21]

The altitude drawn to the base is the median and the angle bisector.

Answer is true

7 0
3 years ago
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Cuantos es 3000 + 2000 +5000​
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Answer:

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3 years ago
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