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skelet666 [1.2K]
3 years ago
9

10 + x + 5x²-x- 3 +5x Which is the simplified expression found by combining like terms?

Mathematics
2 answers:
zlopas [31]3 years ago
6 0
The answer is 5x^2 + 5x + 7
jonny [76]3 years ago
5 0

Answer:5x+5x+7

Step-by-step explanation:10+x+5x²-x-3+5x

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Which models selecting a combination of 3 objects taken from a group of 8 items?
Natalka [10]
The correct answer would be C.) 8C3 = 8!/(5!)3!.
6 0
3 years ago
Tell whether the ordered pair is a solution of the given system. (-2,-4) {y=1/2x -3, y=-2x-8}
kompoz [17]

Answer:

The ordered pair (-2,\, -4) is indeed a solution to the system:

\left\lbrace\begin{aligned} & y = \frac{1}{2}\, x - 3 \\ & y = -2\, x - 8\end{aligned}\right..

Step-by-step explanation:

Consider a system of equations about variables x and y. An ordered pair (x_{0},\, y_{0}) (where x_{0} and y_{0} are constant) is a solution to that system if and only if all equations in that system hold after substituting in x = x_{0} and y = y_{0}.

For the system in this question, (-2,\, -4) would be a solution only if both equations in the system hold after replacing all x in equations of the system with (-2) and all y with (-4).

The \texttt{LHS} of the equation y = (1/2)\, x - 3 would become (-4). The \texttt{RHS} of that equation would become (1/2) \, (-2) - 3. The two sides are indeed equal.

Similarly, the \texttt{LHS} of the equation y = -2\, x - 8 would become (-4). The \texttt{RHS} of that equation would become (-2)\, (-2) - 8. The two sides are indeed equal.

Thus, x = (-2) and y = (-4) simultaneously satisfy both equations of the given system. Therefore, the ordered pair (-2,\, -4) would indeed be a solution to that system.

8 0
2 years ago
What does the point (2,24) represent?
almond37 [142]

Answer:

not sure what you mean here but..... 2 represents your x value which will go on the x intercept. And 24 represents your y value. When you have both of these values, you can plot it on a coordinate graph.


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3 years ago
Dounuts or snacks or chips
astraxan [27]

Answer:

snacks, the reason being that it can be anything

Step-by-step explanation:

5 0
3 years ago
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What is the solution to the system of equations graphed below?
photoshop1234 [79]
A because that is where they cross
8 0
3 years ago
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