$Domain:x\neq-3\\\\\dfrac{2x}{x+3}\leq3\qquad\text{subtract 3 from both sides}\\\\\dfrac{2x}{x+3}-3\leq0\\\\\dfrac{2x}{x+3}-\dfrac{3(x+3)}{x+3}\leq0\\\\\dfrac{2x}{x+3}-\dfrac{3x+9}{x+3}\leq0\\\\\dfrac{2x-(3x+9)}{x+3}\leq0\\\\\dfrac{2x-3x-9}{x+3}\leq0\\\\\dfrac{-x-9}{x+3}\leq0\Rightarrow(x+3)(-x-9)\leq0\\\\x=-3,\ x=-9\\\\x\in(-\infty,\ -9]\ \cup\ (-3,\ \infty)$

3 0

3 years ago

Name the pair of vertical angles

Anit [1.1K]

ABC , dce is the answer

7 0

3 years ago

There are 180 politicians at a meeting. They each shake each others hands with everyone else. How many handshakes were there.

arlik [135]

So if 1 person shakes the other 179 people in the meeting then you would multiply 180 times 179 which would equal 32,220 handshakes

8 0

3 years ago

1. Find the average of the prime numbers in the following list:<br>5, 11, 13, 1, 16, 19, 21

Tomtit [17]

Answer:

Step-by-step explanation:

there are 4 prime numbers

5, 11, 13, 19

4/7 were prime

add 5, 11, 13 and 19 together and divide by 4

5+11+13+19

-----------------

add

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divide top by bottom

=12

8 0

3 years ago