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a_sh-v [17]
3 years ago
11

if a 12 - sided regular polygon rotates about its center, at which angle of rotation will the image of the polygon coincide with

the preimage?
Mathematics
1 answer:
Firdavs [7]3 years ago
4 0
It needs to rotate about it's center 1/12th of a full circle (i.e 1/12th of 360 degrees)

360/12 = 30

<u><em> . . . angle = 30 degree rotation</em></u>
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Find the labeled angles​
ipn [44]

Answer:

X = 25, Angles are 65 degrees

Step-by-step explanation:

3x-10 = x+40

2x=50

x=25

8 0
3 years ago
A new American graduate is contemplating buying a Japanese, German, or an American car. No matter the type of car, he plans to b
Svetach [21]

Answer:

The best option is to buy Japanese Car.

Step-by-step explanation:

Fuel usage per year is 150000/ 8 = 18750 miles per year

Fuel cost (year 1 -8) = $3.0, $3.06, $3.12, $3.18, $3.25, $3.312, $3.38, $3.5

Japanese Car:

Fuel usage 18750 / 23 = 815 * $3 = $2446  

Fuel charges (year 1 -8) = $2445, $2494, $2623, $2758. $2900, $3050, $3207, $3372

Repair Cost (year 1 - 8) = $700, $721, $742, $764, $787, $811, $835, $860

Insurance cost (Year 1 - 8) = $700, $714, $728, $742, $757, $772, $788, $804

Present value of cost at 5% = 24674.07

Cost of car is $30,000

Total cost = $54674.07

Amercian Car:

Cost $35,000

Fuel usage 18750/20 = 937.5 * $3 per gallon = $2812.5.

Fuel charges (year 1 -8) = $2812, $2913, $2986, $3011. $3098, $3124, $3176, $3208

Repair Cost (year 1 - 8) = $800, $894, $921, $978, $1109, $1176, $1207, $1301

Insurance cost (Year 1 - 8) = $800, $827, $876, $898, $908, $932, $954, $934

Present value of cost at 5% = 25302.18

Cost of car is $35,000

Total cost = $60302.

German Car:

Cost = $45,000

Fuel usage 18750 / 21 = 892 * $3 = $2678  

Fuel charges (year 1 -8) = $2679, $2732, $2786, $2842. $2899, $2987, $3077, $3171

Repair Cost (year 1 - 8) = $1000, $1040, $1081, $1124, $1169, $1216, $1265, $1316

Insurance cost (Year 1 - 8) = $850, $867, $884, $902, $920, $938, $957, $976

Present value of cost at 5% = 27105.73

Cost of car is $45,000

Total cost = $72105.

6 0
3 years ago
Which expression shows how 8⋅54 can be rewritten using the distributive property
saw5 [17]
8 * 54 = 8 * 50 + 8 * 4 = 8(50 + 4)
7 0
2 years ago
If you place a 40-foot ladder against the top of a 24-foot building, how many feet will
Bad White [126]

Answer:

1

Step-by-step explanation:

40-41

sine the 24 ladder is on top of the building, then the botom of ladder to bottom of building will be 40 feet away which is actual size of building roundabout

7 0
3 years ago
Read 2 more answers
Two angles are supplementary. One angle has a measure of 51 degrees. What is the measure of the second angle?
UkoKoshka [18]

Answer:

129°

Step-by-step explanation:

Sum of supplementary angles = 180°

One angle = 51°

Other angles = 180° - 51°

                      = 129°

<em>Plz mark as brainliest!!!!!</em>

8 0
2 years ago
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