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natita [175]
3 years ago
14

Which property can you use to show that 3x +{2x+4} is equivalent to {3x + 2x} + 4

Mathematics
1 answer:
yuradex [85]3 years ago
6 0

Answer:

3x+2x=5x but 4 can't add to 3x and 2x

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Graph the equation. Let x​3, ​2, ​1, ​0, 1,​ 2, and 3. y=3x-1
spin [16.1K]

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

The attachment shows the table of point values and the graph.

4 0
3 years ago
PLEASE HELP precal!
sergij07 [2.7K]
Check the picture below

so.. .hmmm the vertex is at the origin... and we know the parabola passes through those two points... let's use either.. say hmmm 100,-50, to get the coefficient "a"

keep in mind that, the parabolic dome is vertical, thus we use the y = a(x-h)²+k  version for parabolas, which is a vertical parabola

as opposed to x = (y-k)²+h, anyway, let's find "a"

\bf y=a(x-0)^2+0\implies y=ax^2\qquad 
\begin{cases}
x=100\\
y=-50
\end{cases}\implies -50=a100^2
\\\\\\
\cfrac{-50}{100^2}=a\implies -\cfrac{1}{200}=a
\\\\\\
thus\qquad \qquad y=-\cfrac{1}{200}x^2\implies \boxed{y=-\cfrac{x^2}{200}}

now.. .your choices, show.... a constant on the end.... a constant at the end, is just a vertical shift from the parent equation, the equation we've got above.. is just the parent equation, since we used the origin as the vertex, it has a vertical shift of 0, and thus no constant, but is basically, the same parabola, the one in the choices is just a shifted version, is all.


5 0
3 years ago
I need help! Someone help me please
liberstina [14]

Answer:

4. 27

Step-by-step explanation:

11-10=1 which is <=16

15-10=5 which is <=16

26-10=16 which is <=16

27-10=17 which isn't <=16

Therefore 27 doesn't satisfy the inequality

4 0
3 years ago
Read 2 more answers
How many 2-letter words can be made from the letters MATH if
gtnhenbr [62]

Answer:

ham

tam

mat

hat

at

ha

am

ma

Step-by-step explanation:

7 0
3 years ago
The residual plot for a data set is shown.
UNO [17]

The true statement about the residual plot is (a) The regression line is a good model because there is no pattern in the residuals.

<h3>How to interpret the residual plot?</h3>

For a residual plot to be considered a good model, the points on the plot must be at random and they must not follow a specific pattern

From the graph, we can see that the points are scattered

Hence, the true statement about the residual plot is (a)

Read more about residual plots at:

brainly.com/question/9329287

#SPJ1

3 0
2 years ago
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