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4 years ago

14

Need help with this problem

1 answer:

notka56 [123]4 years ago

7 0

Answer:

-3

Step-by-step explanation:

it starts at (0,3) then goes to (3,0)

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Find the area of an octagon with a radius of 6 meters

never [62]

A regular octagon has all its eight sides congruent. The line segments joining each of the vertices of a regular octagon to its center are called the radii of the octagon. These 8 radii divide a regular octagon into 8 congruent isosceles triangles. Area of each isosceles triangle is

$A_{triangle}=\dfrac{1}{2}a^2\sin \alpha$ ,

where a is length of the side of the octagon and $\alpha$ is the angle between two radii of the octagon.

In regular octagon

$\alpha=\dfrac{360^{\circ}}{8}=45^{\circ}$ .

Then the area of regular octagon is

$A_{octagon}=8A_{triangle}=8\cdot \dfrac{1}{2}a^2\sin \alpha=4\cdot (6)^2\cdot \sin 45^{\circ}=4\cdot 36\cdot \dfrac{\sqrt{2}}{2}=72\sqrt{2}$ sq. m.

Answer: $A_{octagon}=72\sqrt{2}$ sq. m.

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4 years ago

Which of these daily activities helps build a stronger body?

Whitepunk [10]

Answer:

riding a bicycle to and from school each day

Step-by-step explanation:

As this involves the constant application of force from the leg muscles, this will help to build a stronger body.

8 0

2 years ago

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Which table of ordered pairs represents a proportional relationship?

Shkiper50 [21]

Answer:5

Step-by-step explanation:

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3 years ago

Please help with this :(

kirill [66]

Answer: -m^4

Step-by-step explanation:

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3 years ago

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6x-9=0. Which answer shows the equation written in function

fgiga [73]

Answer:

y = 6x - 9

Step-by-step explanation:

The function is; y = 6x - 9

Here, variable x is independent.

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3 years ago