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tresset_1 [31]
3 years ago
7

A bit confused to be honest :(

Mathematics
2 answers:
Luden [163]3 years ago
3 0
X = 110 degrees

Explanation: we know that the sum of all angle measures will have to equal 360 degrees . By using simple algebra (128+40+82+x = 360) we can determine 360-250=110 degrees

gogolik [260]3 years ago
3 0

Answer:

x = 110

Step-by-step explanation:

360 = 128 + 40 + 82 + x

360 = 250 + x

360-250 = x

110 = x

to know the total value of all sides

(n-2)×180 ÷ n

n= total of sides

You might be interested in
Check whether the relation R on the set S = {1, 2, 3} is an equivalent
kozerog [31]

Answer:

R isn't an equivalence relation. It is reflexive but neither symmetric nor transitive.

Step-by-step explanation:

Let S denote a set of elements. S \times S would denote the set of all ordered pairs of elements of S\!.

For example, with S = \lbrace 1,\, 2,\, 3 \rbrace, (3,\, 2) and (2,\, 3) are both members of S \times S. However, (3,\, 2) \ne (2,\, 3) because the pairs are ordered.

A relation R on S\! is a subset of S \times S. For any two elementsa,\, b \in S, a \sim b if and only if the ordered pair (a,\, b) is in R\!.

 

A relation R on set S is an equivalence relation if it satisfies the following:

  • Reflexivity: for any a \in S, the relation R needs to ensure that a \sim a (that is: (a,\, a) \in R.)
  • Symmetry: for any a,\, b \in S, a \sim b if and only if b \sim a. In other words, either both (a,\, b) and (b,\, a) are in R, or neither is in R\!.
  • Transitivity: for any a,\, b,\, c \in S, if a \sim b and b \sim c, then a \sim c. In other words, if (a,\, b) and (b,\, c) are both in R, then (a,\, c) also needs to be in R\!.

The relation R (on S = \lbrace 1,\, 2,\, 3 \rbrace) in this question is indeed reflexive. (1,\, 1), (2,\, 2), and (3,\, 3) (one pair for each element of S) are all elements of R\!.

R isn't symmetric. (2,\, 3) \in R but (3,\, 2) \not \in R (the pairs in \! R are all ordered.) In other words, 3 isn't equivalent to 2 under R\! even though 2 \sim 3.

Neither is R transitive. (3,\, 1) \in R and (1,\, 2) \in R. However, (3,\, 2) \not \in R. In other words, under relation R\!, 3 \sim 1 and 1 \sim 2 does not imply 3 \sim 2.

3 0
3 years ago
Help i dont understand Pls help :(
olya-2409 [2.1K]

Answer:

x = 1?

Step-by-step explanation:

I think functions are basically just variables but extra so they both act the same. I'm not 100% sure but I Think

if f(x) = -5x + 1 when f(x) = 6,

replace f(x) with 6 so,

6 = 5x + 1

1 - 6 = 5x + 1 - 1

(subtract one on both sides to isolate the variable)

5 = 5x

5/5 = 5x/5

(to Actually isolate the variable lol

1 = x or x = 1

I believe is the answer? please comment if I'm wrong

*I WAS TOLD MY THOUGHT PROCESS IS WRONG ANYONE WHO SEES THIS PLEASE DISREGARD

5 0
3 years ago
Which choice represents the fraction below as a single exponential expression?
lyudmila [28]

the correct answer would be A. 8^-12

8^2 /8^16 =  1/8^14 = 2.27373*10^-13

8^-12 = 1.45519*10^-11

 which are equal so answer is A

4 0
3 years ago
a person can purchase a particular model of a new car with a choice of 10 colors, with or without automatic transmission, with o
ch4aika [34]
Im not good at math
8 0
3 years ago
Read 2 more answers
If you roll a fair die two times, what is the probability of rolling an odd number then rolling a 6 on the same die?
pshichka [43]

Answer:

Step-by-step explanation:

Explanation: The probability of rolling a 2 on a 6-sided dice is 16 . The probability of rolling two 2s on two 6-sided die is, by the multiplication principle, 16×16=136 .

7 0
3 years ago
Read 2 more answers
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