Can someone please tell me if Question 7 and 8 are right? Can you also pleas explain quickly how?

Mathematics

1 answer:

alukav5142 [94]3 years ago

4 0

For 7 Yeah you're correct
You just need to implement the opposite
Since it's division then it turns to multiplication

For 8 also the same

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2x + 3y = 12<br> Complete the missing value in the solution to the equation.<br> 1,8)

Free_Kalibri [48]

Answer:

Step-by-step explanation:

$\mathrm{Slope-Intercept\:form\:of}\:2x+3y=12:\quad y=-\frac{2}{3}x+4\\\mathrm{Domain\:of\:}\:-\frac{2}{3}x+4\::\quad \begin{bmatrix}\mathrm{Solution:}\:&\:-\infty \:$

$\mathrm{Parity\:of}\:-\frac{2}{3}x+4:\quad \mathrm{Neither\:even\:nor\:odd}\\\mathrm{Axis\:interception\:points\:of}\:-\frac{2}{3}x+4:\quad \mathrm{X\:Intercepts}:\:\left(6,\:0\right),\:\mathrm{Y\:Intercepts}:\:\left(0,\:4\right)\\\mathrm{Inverse\:of}\:-\frac{2}{3}x+4:\quad -\frac{3x-12}{2}\\\mathrm{Slope\:of\:}-\frac{2}{3}x+4:\quad m=-\frac{2}{3}$

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What is the y-coordinate of the solution for the system of equations?

8_murik_8 [283]

First equation is: x - y = 12
x = 12 + y

Now, substitute this in 2nd equation,
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In short, Your Answer would be -3

Hope this helps!

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One of the sides is 12 x 18 = 216

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2 years ago