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EleoNora [17]
3 years ago
6

Find the domain f(x)= x/x^2+2

Mathematics
1 answer:
tatiyna3 years ago
8 0
f(x)=\frac{x}{x^2+2}\\
D_f:x^2+2\not=0\\
D_f:x^2\not=-2\\
D_f:x\in\mathbb{R}
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Brainiest <br><br><br>I Am Struggling With Two Questions :?<br> This is one of the two
Eddi Din [679]

Answer:

Sine of an angle =

opposite / hypotenuse

I this figure

AB is the opposite which is 12

BC is the hypotenuse which is 13

sine ∅ = 12/13

Therefore the sine ratio of the angle is

12/13

Hope this helps

7 0
3 years ago
Question 1/8
just olya [345]

Answer:

discount = 290 × <u>1</u>

4

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<u>72.50</u> -

217.50

5 0
3 years ago
If you buy six pens and one mechanical pencil, you'll get only $1 change from your $10 bill. but if you buy four pens and two me
xxTIMURxx [149]

Let p be the prize of a pen and m the prize of a mechanical pencils. If you buy six pens and one mechanical pencil, you spend 6p+m. We know that this equals 9, because you get 1$ change from a 10$ bill.

Similarly, if you buy four pens and two mechanical pencils, you spend 4p+2m, which is 8$, because now you get a $2 change. Put these equation together in a system:

\begin{cases} 6p+m=9\\4p+2m=8\end{cases}

Now, if you multiply the first equation by 2, the system becomes

\begin{cases} 12p+2m=18\\4p+2m=8\end{cases}

Subtract the second equation from the first:

12p+2m - (4p+2m) = 18-8 \iff 8p = 10 \iff p = \dfrac{10}{8} = 1.25

Plug this value into the first equation to get

6p+m=9 \iff 6\cdot 1.25 +m = 9 \iff 7.5 +m=9 \iff m = 9-7.5 = 1.5

7 0
3 years ago
Which strategy would you use to divide 36÷6?explain why you chose that strategy.
jolli1 [7]
36 divided by 6 is like sharing 36 orranges among 6 people
a   a   a   a   a   a|---------------------------1st Person
a   a   a   a   a   a|---------------------------2nd Person
a   a   a   a   a   a|---------------------------3rd Person
a   a   a   a   a   a|---------------------------4th Person 
a   a   a   a   a   a|---------------------------5th Person
a   a   a   a   a   a|---------------------------6th Person 

Each person receives 6 oranges evenly so 36/6 = 6
I used this strategy because it is the easiest to understand
4 0
3 years ago
Read 2 more answers
Connor is stuck in a traffic jam on a single-lane road. The traffic report tells him the traffic jam stretches for 5.5 miles. If
dedylja [7]

Answer:

2323

Step-by-step explanation:

According to the questions above, the report from the traffic jam says the traffics jam stretches for 5.5 miles

As Connor assumes that each car is about 12.5 long

The next step is to convert 5.5 miles into feet.

Since 1 mile = 5280

To convert 5.5 miles, 5.5 x 5280 = 29040 feet  

To find the numbers of cars struck in traffic, we will have to divide 29040 by 12.5

29040/12.5 = 2323.3 ≅ 2323    

5 0
2 years ago
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