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artcher [175]
3 years ago
12

A side of the triangle below has been to from an exterior angle of 141. Find the value of X

Mathematics
1 answer:
Igoryamba3 years ago
6 0
You have to show a picture of the triangle
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Explain the difference in the solutions of linear inequalities and the solutions of systems of linear inequalities.
adoni [48]
Linear Equation

A linear equation is any equation involving one or two variables whose exponents are one. In the case of one variable, one solution exists for the equation. For example, with 2x = 6, x can only be 3.

Linear Inequalities

A linear inequality is any statement involving one or two variables whose exponents are one, where inequality rather than equality is the center of focus

6 0
4 years ago
Solve by substitution -3x-2y=5.5 x+3y=7.5
Naddika [18.5K]

\bf \begin{cases} -3x-2y=5.5\\[-0.5em] \hrulefill\\ x+3y=7.5\\ \boxed{x}=7.5-3y \end{cases}~\hspace{5em}\stackrel{\textit{substituting \underline{x} in the 1st equation}}{-3\left( \boxed{7.5-3y} \right)-2y=5.5} \\\\\\ -22.5+9y-2y=5.5\implies -22.5+7y=5.5\implies 7y=28 \\\\\\ y=\cfrac{28}{7}\implies y=4 \\\\\\ \stackrel{\textit{substituting the found \underline{y} in the 2nd equation}}{x+3(4)=7.5\implies x+12=7.5}\implies x=-4.5 \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill (-4.5,4)~\hfill

5 0
3 years ago
Evaluate the expression 3x^2+ y if x = 1 and<br> y = -3.
elena-14-01-66 [18.8K]
3(1)^2-3= 0
Plug in the numbers because x=1 plug In 3(1)^2 and it equals 3 then subtract y which is 3-3= 0
4 0
3 years ago
(4x^2-2x-3)+(-3x^2+x+7) i know the answer i just need to show the work
timama [110]

Answer:

x² - x + 4

General Formulas and Concepts:

<u>Algebra I</u>

  • Combining Like Terms

Step-by-step explanation:

<u>Step 1: Define</u>

(4x² - 2x - 3) + (-3x² + x + 7)

<u>Step 2: Simplify</u>

  1. Combine like terms (x²):                    x² - 2x - 3 + x + 7
  2. Combine like terms (x):                      x² - x - 3 + 7
  3. Combine like terms (Z):                     x² - x + 4
3 0
3 years ago
What is the base representation of the number 219
andrezito [222]
The base representation is 200, because it’s the base number

Hope this helps:)
4 0
3 years ago
Read 2 more answers
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