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natali 33 [55]
3 years ago
7

K(x) = 6x + 100 k(-5) =

Mathematics
2 answers:
LekaFEV [45]3 years ago
8 0
K(-5)=70
I hope that helps buddy
Mars2501 [29]3 years ago
7 0

Answer:

k(- 5) = 70

Step-by-step explanation:

To evaluate k(- 5) substitute x = - 5 into k(x)

k(- 5) = 6(- 5) + 100 = - 30 + 100 = 70

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Octagon, stop sign.

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area = 8(1/2)(9.9)(12) = 475.2

Answer: 475.2

Usually we wouldn't be told 9.9 -- this is the baby version.  We know each of those isoscles triangles has unique angle 360/8=45 degrees, so the apothem and half the side of the octagon are a right triangle with acute angle 22.5 degrees.

The area of the right triangle with long leg 12, short leg x,

tan 22.5 = x/12 or

x = 12 tan 22.5

Twice that is what we're told is 9.9; let's check:

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3 years ago
A square pyramid is sliced so that the cross section is perpendicular to its base. The cross section intersects the vertex of th
Troyanec [42]
Pyramid's apex is constructed by isosceles triangles. If we slice it from its apex-from the vertex, in the cross section we'll obtain a triangle, This triangle is also going to be an isosceles triangle. 

6 0
3 years ago
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A new machine tool is brought into a production line to help speed production. You take 200 seconds to produce the first widget.
Artemon [7]

Answer:

b = - 0.432

Step-by-step explanation:

It takes 200 seconds to produce the first widget. And by the 400th widget, it takes only 15 seconds.

Now, the formula that gives the time to make the nth widget is given by

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3 years ago
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To solve this problem, we must remember that the sum of interior angle of a polygon is:

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Hence we can also conclude that,

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Answer:

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