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MaRussiya [10]
2 years ago
5

Please help me I have no idea how to solve!

Mathematics
1 answer:
irinina [24]2 years ago
3 0

Step-by-step explanation:

It says add across to the right and add  down bottom

                                                                                  Add across

                               3x                              2x^2                 3x +2x^2

                               x^2                              5x                    x^2 + 5x

Add down            3x + x^2                        2x^2 +5x            3x^2 +8x

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I know what Y is but I don't know X
sertanlavr [38]

Answer: y = 120 degrees, x = 31 degrees

Step-by-step explanation:

Y is 120 degrees because same-side exterior angles are supplementary.

Therefore, 60+ y = 180; y = 120

Since "y" and "4x-64" are supplementary, they add up to 180.

We already know y as 120.

So 120 + 4x - 64 = 180

4x = 124

x = 31

6 0
2 years ago
Please help with this math question
Margaret [11]

Answer:

B

Step-by-step explanation:

5 0
3 years ago
Use the spider tool located on page 1 of this activity to draw a 12-pointed star for the new logo. (Hint:If the spider rotates 3
lidiya [134]

Answer:

  each of the 12 turns is 150°

Step-by-step explanation:

If we number the points of the star 1–12, in order for the star to be symmetrical, each point must connect to two points symmetrically located around the centerline.

That is, point 1 may connect to points {2, 12} or {3, 11} or {4, 10}, or {5, 9} or {6, 8} or {7, 7}. For each of these connections, the angle made at the point of the "star" is, respectively, 150°, 120°, 90°, 60°, 30° or 0°. For these angles, the figure obtained will be ...

  150° - dodecagon, a 12-sided figure

  120° - hexagon

  90° - square

  60° - equilateral triangle

  30° - 12-pointed star

  0° - straight line

The two 12-pointed figures are shown in the attachment.

__

We suspect the star you're interested in is the one with points that are 30°. In order to have that point angle, the spider must make a turn of 180° -30° = 150°.

The spider will make 12 turns of 150°, for a total of 1800°, for a total of 5 full turns of 360°.

4 0
3 years ago
The sum of two polynomials is 10a2b2 – 8a2b + 6ab2 – 4ab + 2. If one addend is –5a2b2 + 12a2b – 5, what is the other addend?
julsineya [31]

Answer:

25a2b2+4a2b+6ab2-4ab+7

Step-by-step explanation:

=sum of two polynomials -one addend

=20a2b2-8a2b+6ab2-4ab+2-(-5a2b2+12a2b-5)

=20a2b2-8a2b+6ab2-4ab+2+5a2b2-12a2b+5

=25a2b2+4a2b+6ab2-4ab+7

8 0
2 years ago
BRAINLIEST. The formula Tn = 200 – 6n²
LenaWriter [7]
What’s the problem ??
8 0
2 years ago
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