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I am Lyosha [343]
3 years ago
10

What is the value of x ? Plssss helppppp

Mathematics
2 answers:
Lilit [14]3 years ago
4 0

Answer:

x=109

Step-by-step explanation:

x+40+31=180

x=109

LuckyWell [14K]3 years ago
3 0

Answer:

109

Step-by-step explanation:

The sum of the angles of a triangle add to 180 degrees

40 + 31+x = 180

71+x = 180

x = 180-71

x= 109

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If y varies directly as x and y=360 when x=180, find y when x=270
kirill115 [55]
Y = kx 360 = k(180) Divide both sides by 180 2 = k So you can now plug in this value into 270 = kx 270 = 2x Now divide both sides by 2 And your answer would be: 135 = x
hope this helps
5 0
3 years ago
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60 PTS [see image] "Identify the parent function that can be used to graph the function"
skelet666 [1.2K]

Answer:

The parent is x^2

Step-by-step explanation:

We are shifting the function and stretching the function

The parent function is x^2

f(x) = x^2

Then shift

f(x) = (x-9)^2

Then stretch

3 (x-9)^2

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4 years ago
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What to do if quadratic equation has a negative spuare root?
alex41 [277]

If the negative square root is found to be one of your solutions, then that is indicative of a pair of imaginary roots (the imaginary i). According to the conjugate rule, if you have one solution that is imaginary, you will have another but with the opposite sign. For example, if a solution to a quadratic is found to be 2 - i, then its conjugate, 2 + i is also a solution. They will ALWAYS go in pairs. Same thing with radical solutions. If one solution is found to be 3+\sqrt{5}

then 3-\sqrt{5} will also be a solution.

3 0
4 years ago
Identify the similar triangle to the triangle shown.
fiasKO [112]

Answer:

A.

A. Is reduced of the example above.

7 0
3 years ago
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What is the solution to the system of equations? ⎧⎩⎨⎪⎪x+3y−z=24x+2y+5z=13x+z=12 (−4, 1, −3) (3, 0, 3) (5, −2, −3) (−1, 2, 3)
snow_tiger [21]
<h3>Answer:</h3>

(5, -2, -3)

<h3>Explanation:</h3>

We assume your equations are ...

  • x +3y -z = 2
  • 4x +2y +5z = 1
  • 3x +0y +z = 12

These have solution (x, y, z) = (5, -2, -3).

_____

<em>How we know</em>

Trying the choices in the last equation eliminates the first and last. Trying the second choice in the first equation eliminates it, leaving the 3rd choice as the answer you're looking for.

We also know because we can ask a graphing calculator to solve the matrix equation (or row-reduce the augmented matrix).

<em>Comment on this problem</em>

The hardest part of this problem is figuring your intent. The equations are not well-separated, so we have a hard time telling what is a constant and what is a coefficient. It took a couple of guesses to sort it out. A little editing before posting would be helpful.

8 0
3 years ago
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