Which number line represents the solutions to lx - 2 = 6?
-10 -9 -8 -7 -6
-5 -4 -3 -2 -1 0 1
2
3 4 5
6
7
8
9 10
9-10 -9 -8
-7 -6
-5
4
+ 7
-3
+ 9
+ т
-2
-1
0
1
2
3
4
5
6
7
8
9
10
-10 -9 -8 -7 -6
-5 -4 -3 -2 -1
0
1
2
3
4
5
6
7
8
9
10
-10-9-8
-7 6
-5 -4
-3
-2
-1
0
1
2
3
4
5
6
7
8
9 10

 - 4 <x <8

Step-by-step explanation:

step-by-step explanation:

12: 00 p.m. to 7: 00 p.m. is a total of 7 hours.

4: 00 p.m. to 7: 00 p.m. is a total of 3 hours.

this means that from 4: 00 p.m to 7: 00 p.m. this represents 3/7 of what was lost from 12: 00 p.m. to 7: 00 p.m.

after knowing this, after doing 11,600 - 6,800 = 4,800

4,800 represents 3/7 of what was lost for 7 hours.

we then divide 4,800 by 3 which gets 1,600.

because we know that 1,600 represents 1/7 of how much water was lost, we just have to multiply by 7, which gets 11,200.   after adding 11,200 to how much water was left at 7: 00 p.m. which was 6,800. 11,200 + 6,800 = 18,000

this means that the pool originally had 18,000 gallons in the pool.

you can also check your work by doing 18,000 - 4(1600), which becomes           1800 - 6400 which gets you 11,600.

explanation:

infrared radiation has wavelength in the range between 700 nm and 1 mm. lets' convert these values into scientific notation, keeping in mind that:

let's start from the lower value, we have:

(we moved the dot two places to the left, so we increased the exponent by 2 units, from -9 to -7)

the higher value is:

so, the range of wavelength of infrared radiation is: