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3 years ago

Shown is a regular pentagon, find y.

Mathematics

1 answer:

timama [110]3 years ago

6 0

Answer:

54 degrees

Step-by-step explanation:

Every side of a regular pentagon is same.

So we have an isosceles triangle. The correspond angle of y, must equal to y (degree) too.

Also, every inner angle of a regular pentagon is 360/5=72. So we can calculate angle y, by the equation y+y+72=180.

y=54

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What are the domain and range of the function f(x) = 3/4x + 5?

pantera1 [17]

Answer:

Domain = (-∞,∞)

Range = (-∞,∞)

This is a linear function.

So, if you were to graph this you'd know that it crosses the x and y axis and continues on forever without stopping.

in that case the domain and range are considered infinite on both axes.

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3 years ago

Another name for same side interior angles is _______ _______ angles.

valina [46]

Transversal line ......................

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4 years ago

Read 2 more answers

Rearrange the equation so nnn is the independent variable.<br> m+1=-2(n+6)m+1=−2(n+6)

lapo4ka [179]

Answer:

$m=-2n-13$

Step-by-step explanation:

The given equation is $m+1=-2(n+6)$

We want to rearrange this equation so that, n becomes the independent variable.

This means we must solve form, m which becomes the dependent variable.

We expand the parenthesis to get:

$m+1=-2n-12$

We now subtract 1 from both sides to obtain:

$m=-2n-12-1$

We simplify to obtain:

$m=-2n-13$

This can be rewritten as

$m(n)=-2n-13$

3 0

3 years ago

A fluorite crystal is shaped like a regular octahedron with edges that are 2.1 inches. Which of these is the volume of the fluor

Anni [7]

To solve this problem you must apply the proccedure shown below:

1. You have the following information given in the problem above: The<span> regular octahedron with edges that are 2.1 inches.

2. Therefore, you must apply the formula for calculate the volume of a octahedron, which is:

V=(a^3</span>√2)/3

3. Therefore, you have:

V=((2.1 inches)^3√2)/3
V=178.30 inches^3

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3 years ago

Work out Ryan’s average speed for his total return journey detailing how you worked it out.

pickupchik [31]

Answer:

For the return, i guess that you say in the interval between 15:40 and 15:45, that is the moment where he goes back to his home, and pass through the local shop.

Ok, in the graph we can see pairs (time, position)

The average speed can be obtained with two of these pairs, and the average speed is:

As = (position2 - position1)/(time2 - time1)

In this particular case, we have the pairs:

(15:40, 900m) and (15:45, 400m)

(i guess that the distance is in meters)

Then the average speed is:

As = (900m - 400m)/(15:45 - 15:40)

and 15:45 - 15:40 = 0.5 minutes.

As= 500m/5 min = 100 m/min

This means that the average speed in this return is 100 meters per minute

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3 years ago