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Marysya12 [62]
3 years ago
6

Find the value of x.

Mathematics
1 answer:
ale4655 [162]3 years ago
4 0

Answer:

35

Step-by-step explanation:

Ad them all together and set it equal to 180 since the interior angles of a triangle is equal to 180

x+10+x+3x-5=180

5x+5=180

5X=175

x=35

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Solnce55 [7]

Answer: 0.5

1) convert to I proper fraction

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3 0
3 years ago
-x^2+4x-8 <br>axis of symmerty​
V125BC [204]

Answer:

\boxed {\boxed {\sf x=2}}

Step-by-step explanation:

The axis of symmetry can be calculated using the formula:

x=\frac{-b}{2a}

First we must determine a and b from the quadratic: -x^2+4x-8. This is in standard form, with the highest power first in descending order.

Standard form is also: ax^2+bx+c

If we compare this to the quadratic given, we can conclude that:

a= -1 \\b= 4 \\c= -8

Substitute the values for a and b into the formula.

x= \frac{-(4)}{2(-1)}

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Divide.

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8 0
3 years ago
X - 2y = 3<br> 5x + 3y = 2<br> The lines whose equations are shown intersect at which point?
Lady_Fox [76]

The point of intersection of the two lines is at (1,-1)

<h3>System of equation</h3>

The given system of expression is shown below

x - 2y = 3

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The solution to the system of equation is the point of intersection

From equation 1

x = 3 + 2y

Substitute into 2

5(3+2y) + 3y = 2

15 +10y + 3y = 2

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y = -1

Substitute y = -1 into 3

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Hence the point of intersection of the two lines is at (1,-1)

Learn more on system of equation here: brainly.com/question/25976025

#SPJ1

8 0
2 years ago
Alexandra saved up her money and bought a
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Step-by-step explanation:

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7 0
3 years ago
Suppose you start with two numbers, a and b. You then increase each of these numbers by the same amount. What is the distance be
tankabanditka [31]

Answer: NONE OF THE ABOVE jk.......the answer is  

The distance between the two new numbers is the same as a + (-b)

Step-by-step explanation:hope this helps:) (i took the checkpoint)

5 0
3 years ago
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