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
agasfer [191]
3 years ago
8

Geometry math question no Guessing and Please show work thank you

Mathematics
1 answer:
Dahasolnce [82]3 years ago
5 0

we can use

each interior angle formula of any regular polygons

\theta=\frac{180(n-2)}{n}

where

n is number of sides

theta is angle

we are given

\theta=157.5

now, we can plug it

157.5=\frac{180(n-2)}{n}

now, we can solve for n

1575n=1800\left(n-2\right)

n=16

so, option-C......Answer

You might be interested in
Find the missing coefficient (2d-5)(2d-4)=4d^2+ "missing coefficient" d+20
LenKa [72]
I hope this helps you

4 0
3 years ago
NEED HELP INSTANTLY AND WILL GIVE BRAINLIEST AND THANKS
lisov135 [29]

Answer:

hope it helps you.......

8 0
3 years ago
Find the length of a rectangular lot with a perimeter of 120 meters if the length is 6 meters more than the width
Vladimir79 [104]

Answer:

The length is 33 and the Width is 27.

Step-by-step explanation:

So I made it easier by only looking at half of the rectangle. 120 divided by 2 is 60. So out of the length and width, it had to add to equal 60. I plugged in a few numbers and determined 27 and 33. SO, if you add those together it equals 60 while 33 is 6 more meters than 27 and two 27 and two 33 equals 120 for the whole rectangle

5 0
4 years ago
Please help me with this I will mark you as brainliest!
Sedaia [141]

Answer:

21, 42, 63, 84

Step-by-step explanation:

Numbers that have a star and a circle on them are all multiples of 3 and 7. As there are less multiples of 7 between 1-100 we should list the multiples of 7 and then check if they are also multiples of 3.

7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84, 91, 98

A quick way of calculating if a number is a multiple of 3 is to see if its digital root is either 3, 6, or 9

7 is not as 7 is not a multiple of 3

14 is not as 1+4 = 5 is not a multiple of 3

21 is, as 2+1 = 3 is a multiple of 3

28 is not, as 2+8 = 10 is not a multiple of 3

35 not, 3+5=8

42 is, 4+2=6

49 is not, 4+9=13

56 is not , 5+6=11

63 is, 6+3=9

70 is not, 7+0=7

77 is not, 7+7=14, 1+4=5

84 is, 8+4=12, 1+2=3

91 is not, 9+1=10 1+0 = 1

98 is not, 9+8=17, 1+7=8

6 0
3 years ago
Solve the equation x – 5 = 0.1(x + 5) for x
AlexFokin [52]

Answer:

Step-by-step explanation:

x - 5 = 0.1(x +5)

x - 5 = 0.1x + 5*0.1

x -5 = 0.1x + 0.5 {Add 5 to both sides}

  x = 0.1x + 0.5 + 5

  x = 0.1x + 5.5

x -0.1x = 5.5      {subtract 0.1x from both sides}

  0.9x =5.5         {Divide both sides by 0.9}

        x = 5.5/0.9

       x = 55/9

       x = 6 1/9

5 0
3 years ago
Read 2 more answers
Other questions:
  • 1. 12 divided by ( -3 )<br><br> 2. -7 x ( -2 )
    8·1 answer
  • Solve the system using substitution or elimination <br>x-3t-z=-9<br>-2x+y+2z=3<br>2x+t+3t=8
    11·1 answer
  • 8(t+2)-3(t-4=6(t-7)+8
    10·1 answer
  • Anyone know this plzz
    9·1 answer
  • Find the slope and y-intercept of the equation. y= 2/3x + 1
    13·1 answer
  • Line WX is parallel to line YZ. if m
    10·1 answer
  • Given the function f(x) = x^3 - x + 3, explain how to write the new function for a horizontal and vertical stretch or shrink, a
    9·1 answer
  • HELP ME PLS :3
    8·1 answer
  • Convert 345 degrees to radians.
    6·2 answers
  • Choose the correct words for the number 0.37.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!