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belka [17]
3 years ago
12

If mn, solve for x. (3x + 9) (x + 21)

Mathematics
1 answer:
Sloan [31]3 years ago
6 0

2

3x. + 63x + 9x + 189

Step-by-step explanation:

<em>Use</em><em> </em><em>distributive</em><em> </em><em>law</em><em>,</em><em> </em><em>in</em><em> </em><em>other</em><em> </em><em>words</em><em> </em><em>multiply</em><em> </em><em>the</em><em> </em><em>first</em><em> </em><em>bracket</em><em> </em><em>terms</em><em> </em><em>by</em><em> </em><em>the</em><em> </em><em>second</em><em> </em><em>bracket</em><em> </em><em>terms</em><em> </em>

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Graph y &gt; -1/3x+5<br><img src="https://tex.z-dn.net/?f=y%20%3E%20%20-%20%20%5Cfrac%7B1%7D%7B%203%20%7D%20x%20%2B%205" id="Tex
ad-work [718]

Explanation:

The function is y>-\frac{1}{3} x+5

To graph the function, let us find the x and y intercepts.

To find x-intercept, let us substitute y=0 in the function y>-\frac{1}{3} x+5

\begin{aligned}0 &=-\frac{1}{3} x+5 \\-5 &=-\frac{1}{3} x \\x &=15\end{aligned}

Thus, the x-intercept is (15,0)

To find the y-intercept, let us substitute x=0, we get,

\begin{aligned}&y=-\frac{1}{3}(0)+5\\&y=5\end{aligned}

Thus, the y-intercept is (0,5)

The graph has no asymptotes.

To plot the points in the graph, we need to substitute the values for x in the function y>-\frac{1}{3} x+5, to find the y-values.

The points are (-2,5.667),(-1,5.333),(1,4.667),(2,4.333),(3,4). The image of the graph and table is attached below:

6 0
2 years ago
In the parallelogram ABCD above (not drawn to scale), AB = 9 cm, AD = 14.2cm and angle
lisabon 2012 [21]

Answer:

b

Step-by-step explanation:

7 0
2 years ago
Help
Rudiy27

Answer:

520

Step-by-step explanation:

must be the answer..

7 0
3 years ago
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Please help me! I will mark brainliest!
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Answer:

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Step-by-step explanation:

3 0
3 years ago
4x-2=18 find what x means
MakcuM [25]
4x-2=18 -2 on both sides 4x=16 divid by 4 on both sides x= 4
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