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worty [1.4K]
3 years ago
9

Which equation represents the relationship between x and y in the table below?

Mathematics
1 answer:
I am Lyosha [343]3 years ago
8 0
Answer is <span>D. y= -4x

x = -1, y = </span><span>-4x = -4(-1) = 4
</span>x = 3, y = -4x = -4(3) = -12
x = 5, y = -4x = -4(5) = -20
x = 9, y = -4x = -4(9) = -36
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Which transformation will map an isosceles trapezoid onto itself? rotation by 180° about its center, reflection across a diagona
alukav5142 [94]

Answer:

The correct option is 4.

Step-by-step explanation:

The non parallel sides of an isosceles trapezoid are congruent.

The image of an isosceles trapezoid is same as the preimage of isosceles trapezoid if

1. Reflection across a line joining the midpoints of parallel sides.

2. Rotation by 360° about its center.

3. Rotation by 360° about origin.

If we rotate the trapezoid by 180° about its center, then the parallel sides will interchanged.

If we reflect the trapezoid across a diagonal, then the resultant figure will be a parallelogram.

If we reflect across a line joining the midpoints of the nonparallel sides, then the parallel sides will interchanged.

After rotation by 360° about the center, we always get an onto figure.

Therefore option 4 is correct.

6 0
3 years ago
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In the diagram, AC=BD. Show that AB=CD
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I believe you just have to draw 2 little lines in between AB and CD.
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Which expression shows a way to find 50% of 632
Ilya [14]

Answer:

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Step-by-step explanation:

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3 years ago
Which relationship is always true for the angles x,y and z of triangle ABC
bixtya [17]

Answer:

B. y + z = x

Step-by-step explanation:

x is an exterior angle of the triangle.

y and z are the opposite angles opposite the exterior angle.

The exterior angle theorem of a triangle states that the measure of an exterior angle equals the measure of the sum of the two angles opposite the exterior angle.

Thus:

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7 0
3 years ago
Find x and y. please help ty!! :)​
Natali [406]

answer:

x=74 y=27

steps:

triangle in the middle is

180-126 = 54

180-85 = 95

180-149 = 31

126=2x+1+31

126=2x+32

2x=94

x=74

126+2y=180

2y=54

y=27

3 0
1 year ago
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