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Mnenie
3 months ago
13

A regular polygon has 15 sides. Which is a possible angle of rotational symmetry for the figure? 12° 45° 72° 90°

Mathematics
2 answers:
Inessa [12.5K]3 months ago
4 0
To find the angle of rotational symmetry for a regular polygon, we use the formula: degrees of rotation = 360° divided by the number of sides. In this scenario, we used n = 5, given that a pentagon has five sides.
The calculation for the angle of rotation is: degrees of rotation = 360° / 5  
Thus, degrees of rotation = 72°

72° is the correct choice among the options.
tester [12.3K]3 months ago
3 0

If I've calculated correctly, the answer is 72 degrees.

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Angela makes a pillow in the shape of a wedge to use for watching TV. The pillow is filled with 0.35 m3 of fluffy
Svet_ta [12734]

Complete Question

Angela has constructed a wedge-shaped pillow for her TV watching needs. It contains 0.35 m³ of fluffy material. The pillow's base area measures 0.5m², and its height stands at 1m.

What is the length of the pillow?

Provide an exact answer (no rounding).

Answer:

1.4m

Step-by-step explanation:

A wedge can be defined as a Triangular prism. Thus,

The volume formula for a wedge (Triangular prism) is given by: 1/2 × B × H × L

b = 0.5m

h = 1 m

l =??

Volume of the wedge = 0.35 m³

0.35 = 1/2 × 0.5 × 1 × L

0.35 = 0.25 × L

Solving for L, we get: L = 0.35/0.25

L = 1.4m

4 0
3 months ago
Anthony is informed that there is a 10% chance that he will be hired by the prestigious Acme corporation. He believes that, give
Zina [12379]

Answer:

8% likelihood that Anthony may soon join the Acme golf team

Step-by-step explanation:

The probabilities are as follows:

10% chance of being hired by the corporation.

If hired, an 80% probability of making the golf team is expected.

Given this information, we can calculate the probability of Anthony soon playing on the Acme golf team as:

80% of 10%

Thus

P = 0.8*0.1 = 0.08

8% chance that Anthony will soon be part of the Acme golf team

4 0
2 months ago
a sign says that the price marked on all music equipment is 30% off the original price you buy an electric guitar for sale price
PIT_PIT [12445]

The original price stands at $450.

Step-by-step explanation:

Step 1:

Given information, Discount%, D% = 30 and Selling Price, SP = $315

Step 2:

Formulate the equation for determining the Original Price

Selling Price (SP) = Original Price (OP) - Discount (D)

Discount (D) = Original Price (OP) * (D%/100)

Step 3:

Plug in the known values into the formula

315 = OP - D

D = OP \times30/100

D = 0.3 OP

Step 4:

Insert the value of D back into the initial equation

315 = OP - 0.3 OP

315 = OP (1 - 0.3) = 0.7 OP

A resulting Original Price of OP = 315/0.7 = $450

5 0
2 months ago
While in college, why did Euler work through advanced math books on his own? His father required it. The quality of education of
Inessa [12570]
The correct answer is "His teacher advised it because he did not have time to tutor Euler privately." I completed the assignment and got it correct.
8 0
2 months ago
Read 2 more answers
What is a34 of the sequence 9,6,3,
PIT_PIT [12445]

Step-by-step explanation:

What is a34 of the sequence 9,6,3,..

r=a2-a1

r=6-9

r=-3

a34=a1+33.r

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a34= 9-99

a34= -90

hope this helps!

bye!

8 0
2 months ago
Read 2 more answers
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