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3 years ago

Which of the following is NOT a statistical question?

Mathematics

1 answer:

xeze [42]3 years ago

4 0

D is not because you can not graph it.

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If a regular polygon has exterior angles that measure 36 each, how many sides does the polygon have?

77julia77 [94]

To find this question's answer, we need to know that sum of the exterior angles of any given polygon is 360°. This is default and non-changeable.

Now we know that the sum of all exterior angles is 360°, the question says that one angle is equal to 36°.

When we divide them we get: $\frac{360}{36} = 10$

So, we found that there are 10 exterior angles.

6 0

4 years ago

The expression 12+x+4

Verdich [7]

Answer:

16+x

Step-by-step explanation:

3 0

3 years ago

The paraboloid z = 5 − x − x2 − 2y2 intersects the plane x = 1 in a parabola. Find parametric equations in terms of t for the ta

yKpoI14uk [10]

Complete question is;

The paraboloid z = 5 − x − x² − 2y² intersects the plane x = 1 in a parabola. Find parametric equations for the tangent line to this parabola at the point (1, 2, -4).

Answer:

x = 1

y = (2 + t)

z = (-4 - 8t)

Step-by-step explanation:

We are given the paraboloid z = 5 − x − x² − 2y²

That it intersects the plane x = 1 and tangent to the point (1, 2, -4).

Thus, the position of the tangent is;

r_o = (1, 2, -4).

Direction vector is; v = (x, y, z)

Let's put 1 for x into the paraboloid.

z = 5 − 1 − 1² − 2y²

z = 3 - 2y²

Now, let's use vectors to find the parametric equation, where;

x = 1

y = t

z = 3 - 2t²

Thus, the Directional vector is now;

v = (1, t, 3 - 2t²)

Derivative of this directional vector is;. v' = (0, 1, -4t)

Putting 2 for t gives;

v' = (0, 1, -4(2))

v' = (0, 1, -8)

Multiplying this derivative by T gjves;

tv' = (0, t, -8t)

The final direction vector will be;

r = r_o + tv'

r = (1, 2, -4) + (0, t, -8t)

r = (1, (2 + t), (-4 - 8t))

Thus our parametric equation is;

x = 1

y = (2 + t)

z = (-4 - 8t)

8 0

3 years ago

What is x. PLEASE HELP NEED ANSWERS NOW. M=

Agata [3.3K]

2(6x+20) +2(8x-16)=180
12x+16x+40-32=180
28x+8=180
X=180-8/28=6
I think so my calculation may be wrong )

4 0

3 years ago

Read 2 more answers

What is the value of x, given that PQ parallel to BC

scoundrel [369]

Answer:

since PQ ||BC,

Angle A is common for both triangles angle P = angle B

triangles ABC, APQ are similar,then their corresponding sides are in proportion

AP/PB =AQ/QC

4/8=x/16

x=8

8 0

3 years ago

Read 2 more answers