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Oliga [24]
3 years ago
7

What is the angle of rotation about the center that will map the regular pentagon onto itself

Mathematics
2 answers:
MakcuM [25]3 years ago
8 0

Answer:the answer is 180 degrees

Step-by-step explanation:

Andrew [12]3 years ago
5 0

The answer is 180 degrees. The rotation that maps one side to an adjacent side is 360°/6 = 60°. This is the least rotation that plots the regular hexagon to the aforementioned. In the least whole number of these minimum rotations, such as three 60° rotations to make 180°, will retain the hexagon identical.

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Can somebody help me with this math question?
kap26 [50]

Answer:Hk and IJ

Step-by-step explanation:

They are parallel to eachother, hope this helped!

<!> Brainliest is appreciated! <!>

6 0
3 years ago
At a sand and gravel plant, sand is falling off a conveyor and onto a conical pile at a rate of 10 cubic feet per minute. The di
lawyer [7]

Answer:

0.0063 ft / min

Step-by-step explanation:

From the problem statement we have that the variation in volume with respect to time is equal 10, like this:

dV / dt = 10 ft ^ 3 / min

We know that the volume of the cone is given by the equation:

V = (1/3) * Pi * r ^ 2 * h

Now, we are mentioned that the diameter of the base of the cone is approximately three times the altitude, therefore:

2r = 3h, solving for r we have:

r = (3/2) * h, replacing the volume equation:

V = (1/3) * Pi * [(3h / 2) ^ 2] * h, solving we have:

V = (3/4) * Pi * h ^ 3

They ask us to calculate the change in height with respect to time, that is dh / dt

Therefore we derive both sides with respect to time, we have to:

dV / dt = (3/4) * Pi [3 * (h ^ 2) dh / dt] = (9/4) * pi * (h ^ 2) * dh / dt

reorganizing for dh / dt, we have:

dh / dt = [4/9 * pi * (h ^ 2)] * dV / dt

Knowing that h is 15 and dV / dt is 10, we replace these values:

dh / dt = [4/9 * 3.14 * (15 ^ 2)] * 10 = 0.0063 ft / min

0.0063 ft / min would be the change in height with respect to time.

4 0
3 years ago
Agent groot uses his secret spy camera to photograph some of his enemies that are plotting to take over the world. He takes 48 o
ehidna [41]

Answer:

40% of the photos are victor

Step-by-step explanation:

48/(48+32+40)

6 0
3 years ago
Hey square piano has an area of 200 ft.² how long is each side of the piano to the nearest 0.05
sergey [27]
Since all sides of the square are equal, therefore area of square can be calculated using the following rule:
area of square = side^2
200 = (side length)^2
therefore,
the length of each side is sqrt(200) = 14.14 ft
4 0
3 years ago
A circle has a diameter of 5 ft. What is the circumference of the circle? Round to nearest hundreth
yawa3891 [41]

Answer:

15.70

Step-by-step explanation:

5 \times 3.14 = 15.70

5 0
3 years ago
Read 2 more answers
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