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sammy [17]
4 years ago
13

If 7x + 5y=25 and 3x+2y= what is the value of x+y

Mathematics
1 answer:
Nostrana [21]4 years ago
5 0

Answer:

Step-by-step explanation:

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Can someone tutor me on this question page
Gwar [14]
I can try but what is the question.
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3 years ago
Find the zeros Factor the quadratic by checking factor pairs. 9x^2 + 39x + 42
pshichka [43]

Answer:

when this quadratic is equal to 0

3(3x^2+13x+14)=0

3(3x+7)(x+2)=0

3 is not equal to 0

therefore (3x+7) or(x+2)=0

5 0
3 years ago
Part 2 math please need it done
katovenus [111]

Answer:

x≤8

Step-by-step explanation:

x÷4≤2

Take the 4*2=8 Since you are dividing on one side, you do the opposite and multiply

6 0
3 years ago
Read 2 more answers
Write a linear function f with the values f(-4) = 0 and f(0) =0 please help
Sergeeva-Olga [200]

f(\stackrel{x_1}{-4})=\stackrel{y_1}{0}\qquad f(\stackrel{x_2}{0})=\stackrel{y_2}{0}~\hfill (\stackrel{x_1}{-4}~,~\stackrel{y_1}{0})\qquad (\stackrel{x_2}{0}~,~\stackrel{y_2}{0}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{0}-\stackrel{y1}{0}}}{\underset{run} {\underset{x_2}{0}-\underset{x_1}{(-4)}}}\implies \cfrac{0}{0+4}\implies \cfrac{0}{4}\implies 0

\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{0}=\stackrel{m}{0}(x-\stackrel{x_1}{(-4)})\implies \boxed{y = 0}

6 0
3 years ago
Create a linear equation for the following data:
djverab [1.8K]

Answer:

y=-.386x + 2.879

Explanation:

For these type of calculations, you would have to use a graphing calculator to use the <em>linear regression</em> function. What this does is, it takes the x & y values given on the chart and it gives you the best possible linear equation for the given data set.

The exact results were:

y = -0.3862928349 + 2.869158879

4 0
3 years ago
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