Answer:
Parallel lines have no solutions.
Explanation:
The slope of a parallel line is 0, so there’s no solution.
Answer:
-9
Step-by-step explanation:
18÷x = -2
18 = -2×x
18 = -2x
-9 = x
x = -9
The answer is 8 units. Hope this helps:)
Answer:
2
Step-by-step explanation:
(-23 - 11) + (15 + 21)
-34 + 36
36 - 34
2
First of all this survey need to be <span>anonymous. The company need to know the population whom the survey is addressed. So, I think the following questions can be a good example:
1. </span><span>Where do you usually use earphones? (Please select all that apply)
</span><span>library
home
transportation
kitchen
driving/riding
Other
2. What are the purposes you use earphones? (Please select all that apply)</span><span> learn language
listen to music
watch video
privacy concerns(show ‘don’t bother me’)
for beauty
Other
</span>
<span>3. What kind of earphones you like the most?
<span>
circumaural
supra-aural
earbuds
in-ear
<span>4. What are the reasons make you like the earphone you chose in question 3? (Please select all that apply)
<span>
appearance
comfortability
function(plays music well)
brand
price
portability
Other
<span>5. Have you ever felt vulnerable or unsafe while wearing headphones and listening to music because you are not as aware of your surroundings?
<span><span>
yes</span><span>
no</span></span></span></span></span></span></span>
