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denis23 [38]
3 years ago
11

Help me please someone

Mathematics
1 answer:
Zigmanuir [339]3 years ago
5 0

9514 1404 393

Answer:

  x = 150

Step-by-step explanation:

The sum of the exterior angles of a convex polygon is 360°.

  65° +80° +72° +(x -7)° = 360°

  x = 150 . . . . . . divide by °, subtract 210

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Find the missing side of the triangle. <br> Solve for X
mr Goodwill [35]

Answer:

11.18 or 11 yards

Step-by-step explanation:

15² - 10² = x²

225 - 100 = x

225 - 100 = 125

√125 = 11.180339887498948482045868343656

11.180339887498948482045868343656 rounded to the nearest hundredth is 11.18; to the nearest tenth is 11.2; and to the nearest one is 11.

8 0
3 years ago
X+3y = 2
nalin [4]

Answer:

The value of "x" is 5.

Step-by-step explanation:

In order to solve this system of equations, we first have to take the first equation and use it to represent "y" in terms of "x". We do that in the following way...

x + 3y = 2\\3y = 2 - x\\y = \frac{2}{3} - \frac{x}{3}

Now, we need to take the second equation and substitute "y" for the equivalent value in terms of "x". After doing this we will get the following equation, which we can solve to get the value of "x".

4x - 3y = 23\\4x-3(\frac{2}{3} - \frac{x}{3}) = 23\\4x - 2 + x = 23\\5x - 2= 23\\5x = 25\\x = 5

Therefore, the value of "x" is 5.

8 0
3 years ago
Equation A
NemiM [27]

its c

Step-by-step explanation:

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3 years ago
Evaluate the expression(-3.8)+0+y for the given values of y.
11111nata11111 [884]

Answer:

y = -3.3 then  -7.1

y = -7.1 then  -10.9

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y = 1 then -2.8

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Step-by-step explanation:

(-3.8)+0+y can be simplified to -3.8 + y. Evaluate each value for y by substituting it into the expression and solving.

y = -3.3 then -3.8 + -3.3 = -7.1

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y = -2.6 then -3.8 + -2.6 = -6.4

y = 1 then -3.8 + 1 = -2.8

y = 4.2 then -3.8 + 4.2 = 0.4

7 0
3 years ago
What are expressions equal to 16a+40
Liula [17]
8a+8a+40
It is equivalent
8 0
3 years ago
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