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
lana [24]
3 years ago
15

Can someone plZzzzZZ help me with all of the questions plzzzzzzZZ

Mathematics
1 answer:
tekilochka [14]3 years ago
3 0

Answer:

Step-by-step explanation:

1) sum of measures of interior angle 30-gon = 180 * (n - 2) = 180* (30-2)

                    = 180*28 = 5040

2) measure of one interior angle 30-gon = 5040/30 = 168

3) Interior angle of a regular polygon = 160

Exterior angle of a regular polygon = 180 - 160 = 20

No. of sides = 360/exterior angle = 360/20 = 18 sides

4) m<A = 4x

   m<C =7x

5) opposite angles are equal in a parallelogram.

i) 2x + 20 = 4x - 50

20 + 50 = 4x - 2x

70 = 2x

2x = 70

x = 70/2 = 35

x =35

2y - 90 = y

2y - y = 90

y =90

ii)opposite sides are equal in a parallelogram.

6x - 15 = x + 10

6x - x = 10 + 15

5x = 25

x = 25/5

x = 5

4y - 20 = 2y - 8

4y - 2y = 20 - 8

2y = 12

y = 12/2

y = 6

You might be interested in
The graph shows the cost of renting skates. Sadie rents a pair of skates at 10 A.M. How much will she pay if she returns the ska
stiv31 [10]

Answer: 1 PM = $8

1:15 PM = $9.0

Step-by-step explanation:

a. Since Sadie rents a pair of skates at 10 A.M and returned the skates by 1 P.M, this means the hours spent was 3 hours. Therefore, based on the graph, for 3 hours rented, he will pay $8

The amount that she will pay if she returns them at 1:15 P.M. will be equal to the value of 3 hours 15 minutes which will be:

= $8 + $1.0

= $9.00

5 0
3 years ago
What is the answer and why is it that answer
Dmitry_Shevchenko [17]

Answer:

A

Step-by-step explanation:

73+107 = 180. When the smaller of the two angles is 73 all of the smaller angles are also going to be 73 and since the angles MTS and STN are bigger angles they both have to be 107

5 0
3 years ago
Find each percentage of 75 explain your reasoning 1.what Is 10%of 75% 2. What is 1% of 75%
kozerog [31]
1. 7.5 because Y/75 X 10/100 = 750 /100 = 7.5
2. .75 because Y/75 X 1/100 = 75/100 = .75
4 0
4 years ago
Cathrine has £7000 to invest.
Anvisha [2.4K]
Since this is a compound interest problem, you have to take note that the amount Catherine will get per year is not the same. It will increase per year since it is compounded. So first, we get the amount after one year. This will be 7000 x 0.04 which is 280 plus 7280. In the second year, she will get 7571 (7280 x 0.04 + 7280). In the third year, she will get 7874 (7571 x 0.04 + 7571). In the fourth year, she will get 8189 (7874 x 0.04 + 7874). And finally in the fifth year, she will get 8517 (8189 x 0.04 +8189). So after five years, she has 8517
4 0
3 years ago
What is the surface area of this composite figure?
faust18 [17]

Answer:

<h2>          294 cm²</h2>

Step-by-step explanation:

6\cdot6+5\cdot(6\cdot7)+6\cdot4+2\cdot(\frac12\cdot6\cdot4)=36+210+24+24=294\,cm^2

4 0
3 years ago
Other questions:
  • What is the circumference of a circle with a radius of 4.4 centimeters? Enter your answer as a decimal in the box. Use 3.14 for
    9·2 answers
  • In a pond 60% of the fish are catfish.
    12·2 answers
  • I need to know if this is a negative or positive slope?
    5·2 answers
  • By how much is the product of 2 1/2 and 2/5 less than 4​
    7·1 answer
  • Can someone help me PLZ<br> (125n^9) ^ -2/3
    10·2 answers
  • The ratio of boys to girls at the dance was 8 to 4. How many girls were at the dance if there were 88 boys at the dance?
    14·1 answer
  • Someone help please and please make sure it’s right :)
    8·1 answer
  • A company produces the two products, A and B. At least 30 units of product A and at least 10 units of product B must be produced
    12·1 answer
  • Can somebody help me with my Geometry?​
    13·2 answers
  • HELP ME OUT PLS!!!!!!!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!