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Whitepunk [10]
3 years ago
6

Which octant contains the image of point A( 1, -3, 4) after a reflection about the xz - plane?

Mathematics
1 answer:
ANTONII [103]3 years ago
7 0

Hi,

Concept: The given problem is based on 3 Dimensional Geometry.

Consider three axes in defined space be x, y & z in their positive directions then - x , -y & -z be their negative axes.

The coordinate of given point A(x1, y1, z1) = (1, -3, 4)

If we take the reflection of point A about xz - plane x and z coordinates will remain same and y-coordinate will give its reflection. It means the value of y-coordinate will be changed which will be +ve 3.

Hence, the reflection of A(1, -3, 4) will be A'(x2, y2,z2= (1, 3, 4).

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Step-by-step explanation:

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ad-work [718]

Answer:

x = -1

Step-by-step explanation:

6 − 4x = 6x − 8x + 8

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Add 2x to both sides.

6 − 4x + 2x = 8

Combine −4x and 2x to get −2x.

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Hope this helps and have a great day! =D

7 0
3 years ago
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LekaFEV [45]

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15

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5 0
3 years ago
1. How many ways are there to make an octagon with 19 different sticks when order DOESN’T matter?
mart [117]

Answer:

1. 19C8 = 75582

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Combination:

When order doesn't matter, you have to divide 19!/11! by the number of ways to order 8 sides, or 19!/11!/8!=19C8=75582

Permutation:

When order doesn't matter, you don't have to divide 19!/11! by the number of ways to order 8 sides, since you count each of these, and 19!/11!=19P8=3047466240.

6 0
4 years ago
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Fofino [41]

Both 38 and 58 are even so they both can be divided by 2,

38/58

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that is in the simplest form

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