1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
goblinko [34]
3 years ago
10

Please answer, i will give 20 points!!!

Mathematics
2 answers:
k0ka [10]3 years ago
8 0

Answer:

  5)  x = 36°

  7)  x = 108°, y = 36°

Step-by-step explanation:

5) The exterior angle at any vertex of a regular polygon has measure 360°/n, where n is the number of sides of the polygon. Here, the external angle is ...

  360°/5 = 72°

The isosceles triangle with x as its vertex angle has base angles that are both 72°, so x is ...

  x + 72° +72° = 180°

  x = 36° . . . . . . . . . . . subtract 144° from both sides

__

7) In (5), we found the external angle at the vertex of a regular pentagon to be 72°. Then the internal angle (x, here) is ...

  x = 180° -72°

  x = 108°

Angle y is the base angle of an isosceles triangle with vertex angle 108°, so its measure will be ...

  y + y + 108° = 180°

  2y = 72°

  y = 36°

Lapatulllka [165]3 years ago
4 0

Answer:

36

Step-by-step explanation:

Pentagon has 5 sides

The formula for finding the sum of the measure of the interior angles is (n - 2) * 180

(5-2)×180= 3×180=540

To get each interior angles

540/5 = 108

180 -108 = 72

To get x

72+72+x= 180 (sum if angles in a triangle)

144+x= 180

x = 180 -144 = 36

2. x is part of the interior angles = 108

You might be interested in
Layla calculates the mean of the ages of 10 students on her bus, and she discovers the average(mean) age is 12.8. What will happ
Papessa [141]
Hey it’s 42 but carry the two to answer the two to my my
7 0
3 years ago
Jennifer buys school supplies for $12.16. The sales tax is 7.25% what is the amount of tax for Jennifer’s purchases? Show how yo
11111nata11111 [884]

Answer:

$12.16 x .0725 = .8816 round is .88 cents

Step-by-step explanation:

change % to decimal and multiply

7 0
3 years ago
Read 2 more answers
El triple de un número disminuido en 4 se convierte en - 10 que número es??? ​
Slav-nsk [51]

Answer:

-2

Step-by-step explanation:

3x-4=-10\\3x=-10+4\\3x=-6\\x=-2

4 0
3 years ago
PLS HELP ME THIS IS DUE RIGHT NOW AND I NEED HELP.
loris [4]

Answer:

40,500

Step-by-step explanation:

90,000 × 55/100

40,500 houses were on sale last summer

7 0
3 years ago
What 8 divided by 1 4/5
AnnZ [28]

Answer:

8 divided by 1 4/5 equals 4 4/9

5 0
3 years ago
Other questions:
  • A die is rolled. What is the probability that the number is a factor of 6 or more than 2? Does this scenario represent mutually
    8·1 answer
  • Casey bought 15.4 pound turkey and an 11.6 pound ham for thanksgiving and paid 38.51. Her friend Jane bought a 10.2 pound turkey
    6·1 answer
  • How do i solve this? what is the answer?
    12·1 answer
  • A city council is deciding whether or not to spend additional money to reduce the amount of traffic. The council decides that it
    6·1 answer
  • A watch lost 1 minute 18 seconds in 39 days. How many seconds did it lose per day?
    11·1 answer
  • 1/3 divided by 4 someone help!!
    6·2 answers
  • if you estimated your sale to be $300 but your actual sale was $345, what was your percent of the increase?
    13·1 answer
  • Evaluate the following
    7·2 answers
  • Which table represents a liner function?
    14·1 answer
  • Use a calculator to approximate the measure of the acute angle A to the nearest tenth of a degree. sin A = 0.7793
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!