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aksik [14]
3 years ago
11

4. Find the value of x.

Mathematics
2 answers:
jok3333 [9.3K]3 years ago
3 0

Answer: I believe its B

Step-by-step explanation:

Oksana_A [137]3 years ago
3 0

Answer:

Step-by-step explanation:

The sum of interior angles is 180(n-2) where n=number of sides. In this case there are 8 sides so the sum of angles is

180(8-2)=1080 degrees. Now can solve for x

5x+4x+138+116+132+126+134+123=1080

9x+769=1080

9x=311

x=34.6

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1. What is the diameter of a circle with radius of 7 inches?
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Step-by-step explanation:

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A standard deck of 52 cards contains 13 cards with hearts, 13 with diamonds, 13 with clubs, and 13 with spades. How
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Step-by-step explanation:

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4 years ago
I can’t understand 21-23 can someone solve or explain them please (geometry)
k0ka [10]
21. <DBE and <ABE are both equal halves of <ABD, so in this case, m<ABE = m<DBE, so all you have to do is solve the equation:

6x + 2 = 8x - 14
add 14 to both sides, subtract 6x from both sides.
16 = 2x
Divide both sides by two. The solution is x = 8. To find m<ABE, replace x with 2, so your final answer is 14. m<ABE = 14

22. From what we know from 21, m<ABE = m<EBD, so keep that in mind. We still have to solve for m<EBD. Since one line is 180 degrees, we are able to write out this equation using the information given:

180 = 9x - 1 (m<ABE) + 9x - 1 (m<EBD) + 24x + 14 (m<DBC)
simplify this:
180 = 12 + 42x
subtract 12 from both sides, then divide by 42.
4 = x
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23. From the past two equations, we know m<ABE consistently equals m<EBD. This means that, if they are bisectors of a right angle, they both equal 45 degrees. here is our equation:

45 = 13x - 7.
we add seven to both sides and divide by 13.
4 = x
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4 years ago
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