Mathematics, 10.10.2019 22:00 jeonkara

100 ! brainliest if

write and simplify a polynomial expression for the surface area of each figure.

100 ! brainliest if write and simplify a polynomial expression for the surface area of

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Answer from: victo17

Step-by-step explanation:

I'm going to make some assumptions here before we start. The way you have typed this only gives 2 dimensions. Are we supposed to rotate this around an axis?

1) That it's 3 dimensional (they ask for surface area). 2D would just say area. Not surface area.

2) That r stands for radius

3) That it's circular (they give a radius). But radii are not usually negative. So where is this defined?

Let's make a chart with a few points to try to "see" what we're working with.

r = x h = x + 9

1 10

2 11

5 14

0.1 9.1

Things certainly LOOK linear. This is born out by the equation h = x +9. H Could it be a cone?

My best GUESS is that this is a cone. Or maybe a half of a cone. But there really is not enough given to be absolutely sure. Did the teacher give some instructions in class that are not here?

| /

9|/

| x = r

This has me intrigued. If there is more to this, would you please tell me what got left out? hes correct give him brainlist i just did this for him

Answer from: esnyderquintero

Yellow shape:

2x + x + 3 + 2x + 1

5x + 4

Blue shape:

w + 3 + w - 1

2w + 2

Orange shape (toddler terms lol):

2y + 2y + 1 + 3y + y + 3

8y + 4

Combine like terms

Always put variables first.

Answer from: Quest

-2

7 - 9 = -2

reversed:

-2 + 9 = 7

Answer from: Quest

Answer: question no. 1 -a. yes, the sides are in the ratio 2 : 5.question no. 2 -b. 59°question no. 3 -c. angles x and y are remote interior angles.question no. 4 -d. 90°, 45° and 45°question no. 5 -b. mn and qrstep-by-step explanation: question no. 1 -rs : xu = 3 : 7.5 = 2 : 5rt : x? = 6.4 : 16 = 2 : 5st : u? = 6 : 15 = 2 : 5as the ratios of all sides are equivalent, the triangles must be congruent and the sides must be proportional.therefore, the answer is: a. yes, the sides are in the ratio 2 : 5.question no. 2 -in the second diagram, angle b is the only letter not shown. therefore, the number must be equivalent to angle b.if we substitute the value of angle b as being 22° in the first diagram, we can now use the angle sum of a triangle to obtain the value of angle a.angle sum of a triangle = 180°therefore: let angle a = aa + 99 + 22 = 180a = 180 - 99 - 22a = 59°therefore, the answer is: b. 59°question no. 3 -angles x and y don't share the vertex of the triangle with the exterior angle w. remote interior angles don't share a vertex of a triangle with an exterior angle. this means that angles x and y are remote interior angles.therefore, the answer is: c. angles x and y are remote interior angles.question no. 4 -the sum of all interior angles of a triangle must be equivalent to 180°.90°, 45° and 45° are the only set of angle measures that are equivalent to 180°.therefore, the answer is: d. 90°, 45° and 45°question no. 5 -the only pair of sides stated in the options which are corresponding are mn and qr.therefore, the answer is: b. mn and qr.