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4 years ago

12

The plan shows part of a roof on a house. A horizontal beam parallel to the base of the roof connects the roof and the central p

illar. What is the unknown measurement on the plan?

1 answer:

gulaghasi [49]4 years ago

6 0

Pls. see attachment.

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Amiyah has two coupons from Macy's Department Store, one for $20 off

horsena [70]

Answer:Jermaine

Step-by-step explanation:

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3 years ago

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

Find the cosecant of both angle A and angle B.

Snowcat [4.5K]

Hope this helps you..!!

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3 years ago

the pressure, P, of a gas varies inversely with its volume, V. pressure is measured in units of PA. Suppose that a particular am

miss Akunina [59]

The pressure is 39 Pa if the volume is expanded to 168L and the pressure, P, of a gas varies inversely with its volume, V.

<h3>What is a proportional relationship?</h3>

It is defined as the relationship between two variables when the first variable increases, the second variable also increases according to the constant factor.

We have:

The pressure, P, of a gas varies inversely with its volume, V.

P ∝ 1/V

P = k/V

k is the constant.

If P = 126 Pa and V = 52 L

126 = k/52

k = 6552

P = 6552/V

Plug V = 168 L

P = 6552/168 = 39 Pa

Thus, the pressure is 39 Pa if the volume is expanded to 168L and the pressure, P, of a gas varies inversely with its volume, V.

Learn more about the proportional here:

brainly.com/question/14263719

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2 years ago

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Allisa [31]

X=-3, y= 1 using the substitution method

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3 years ago