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77julia77 [94]
3 years ago
12

What is the value of x?

Mathematics
1 answer:
saveliy_v [14]3 years ago
3 0
Equilateral triangle<span> is a </span>triangle<span> in which all three sides are equal 
</span>also 3 angles are equal and each angle = 60 degrees
so

2x - 4 = 60
2x = 64
  x = 32

hope it helps
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Bob and Carl each renter the same kind of moving truck from ez move. There was a flat rental fee plus charge per mile that the t
dimulka [17.4K]

It's a linear function: y = mx + b

We have (138; 112.96); (209; 142.78)

substitute the values of x and y to the formula of slope m:

m=\dfrac{y_2-y_1}{x_2-x_1}\\\\m=\dfrac{142.78-112.96}{209-138}=0.42

Now we have: y=0.42x+b

We must find b. Substitute the value of x and y from first pair of numbers:

112.96=0.42\cdot138+b\\\\112.96=57.96+b\ \ \ |-57.96\\\\b=55

Answer: y = 0.42x + 55

3 0
3 years ago
Read 2 more answers
Eight rooks are placed randomly on a chess board. What is the probability that none of the rooks can capture any of the other ro
Brums [2.3K]

Answer:

9.11*10^-4 %

Step-by-step explanation:

To find the probability, you simply need to find the possible outcomes that allows no rooks to be in danger, and the possible amount of ways to place the rooks.

For the first outcome, you start by putting 1 rook in the first columns, you have 8 possible rows to do this. The next rook in the next column will only have 7 possible rows, as you have to exclude the one where the previous rook is located. The next rook, 6 possibilities, the next 5, and so on. So we conclude that the total amount of ways so that none of the rooks can capture any of the other rooks is 8*7*6*5*4*3*2*1 = 8! = 40320

In order to find the total amount of ways to place the rooks, you can just use a combinatoric:

\left[\begin{array}{ccc}64\\8\end{array}\right]= \frac{64!}{8!(64-8)!} = 4.43*10^9

Then:

P = \frac{40320}{4.43*10^9}*100\%=9.11*10^{-4}\%

5 0
4 years ago
Identify the angle relationship. Which equation can be used to solve for x?<br> (4x + 1)<br> 170
Mice21 [21]

Answer:

680x + 170

Step-by-step explanation:

calculate the product

4x x170 +170=

680x+ 170

4 0
3 years ago
What is the value of x? Enter your answer in the box.
Archy [21]
Explanation

The sum of the three angles of a triangle has to be equal to 180 degrees.

So...
180-(75+50)
180-125
=55 degrees

X equals 55 degrees
8 0
3 years ago
Can y'all answer this please​
Svetlanka [38]

Answer:

50

Step-by-step explanation:

8 0
3 years ago
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