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maw [93]
2 years ago
12

I need help with problem 19

Mathematics
2 answers:
lara [203]2 years ago
8 0

Answer:

24

Step-by-step explanation:

The formula for calculating the sum of interior angles is:

(n - 2) x 180°  (where n is the number of sides)

interior angle of a polygon = sum of interior angles ÷ number of sides

165 = [ (n - 2) x 180° ] ÷ n

Mulitply both sides by n:             165n = (n - 2) x 180°

Expand brackets:                         165n = 180n - 360

Add 360 to both sides:    165n + 360 = 180n

Subtract 165n from both sides:   360 = 15n

Divide both sides by 15:                 24 = n

Therefore, the number of sides = 24

Vsevolod [243]2 years ago
6 0

Answer:

124

Step-by-step explanation:

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Answer: D) y= 14/17x - 4/17
3 0
3 years ago
How do we find the missing side of a shape when we are given the perimeter?
ryzh [129]

Answer:

subtract the inside number's

Step-by-step explanation:

first you add the inside numbers and then once you get that number lets to say you got 66, 66 times 66=4,356 then thats your number

4 0
3 years ago
Need help on question 5 please help
blagie [28]

Answer:

  $66

Step-by-step explanation:

It can be convenient to assign a different variable to the amount of money each spent. We can call the amounts spent by Seedevi, Georgia, and Amy "s", "g", and "a", respectively.

The problem statement tells us ...

  s = (1/2)g

  s = a +6

  s + g + a = 258

__

The problem statement asks for the amount Seedevi spent, so we need to find the value of s. It is convenient to write the other variables in terms of s:

  g = 2s

  a = s -6

Then the sum is ...

  s + (2s) +(s -6) = 258

  4s = 264 . . . . . . . . . . . add 6, simplify

  s = 66 . . . . . . . . . . . . . .divide by 4

Seedevi spent $66.

4 0
3 years ago
Jacques wants to fit a scale model of this room on an 8.5” by 11” paper. What scale factor should he use? He wants to make the s
AleksAgata [21]

Answer:

1:20 scale should be perfect

Step-by-step explanation:

8 0
3 years ago
The function f(x) = 2x + 210 represents the number of calories burned when exercising, where x is the number of hours spent exer
Alex787 [66]

This means 339 calories burned while combining diet with 1 hour of exercise

Step-by-step explanation:

Given the functions as:

f(x)=2x+210  

g(x)=2x+125 then

(f+g)(x) = 2x+210 +2x+125 = 4x +335

(f+g)(1) = 4(1)+335

           =339

This means 339 calories burned while combining diet with 1 hour of exercise

Learn More

Functions :brainly.com/question/3122826

Keywords : function, calories,exercising, deficit

#LearnwithBrainly

3 0
3 years ago
Read 2 more answers
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