3 years ago

Help plz I have 6 minutes

Mathematics

1 answer:

ivanzaharov [21]3 years ago

7 0

Answer:

x = 105

Step-by-step explanation:

Sum of n-sided polygon = (n - 2)*180

The polygon given is a 7-sided polygon, therefore substitute n = 7 into (n - 2)*180

Sum of the polygon = (7 - 2)*180 = 900°

Thus:

x + 102 + 165 + 123 + x + 11 + 128 + 161 = 900

Add like terms

2x + 690 = 900

2x = 900 - 690

2x = 210

x = 210/2

x = 105

You might be interested in

Someone please help me will give BRAILIEST!!!!

Rom4ik [11]

X>10 is the answer because it doesn't mention anything about also equaling 10 in of snow and x is more than 10 is given from "more than 10 inches of snow"

3 0

3 years ago

Half a number increased by 10 is equal to 35 less than twice the number. What is the number?

faust18 [17]

Answer:

x=10

Step-by-step explanation:

x/2 + 10 = 35 - 2x

x/2 + 2x = 35 - 10

5x/2 = 25

5x = 25.2

5x = 50

x = 50/5

x = 10

8 0

3 years ago

Which property is shown?<br><br> If m∠ABC = m∠CBD, then m∠CBD = m∠ABC

otez555 [7]

ANSWER: symmetric property

hope it helps thanks

brainliest pls

6 0

3 years ago

Read 2 more answers

Pls The scale used to create a triangular sculpture at City Place was 3 inches represents 2

zhuklara [117]

Answer: BBC

Step-by-step explanation: thats a tuff one

8 0

3 years ago

A special number cube has the first six prime numbers as possible outcomes. Find the expected value of a roll of the

nalin [4]

Answer:

Step-by-step explanation:

6 0

3 years ago