Answer:
As given in the problem statement,it should be treated as quantitative Students in the northeastern United States was measured and it is a correct option B is correct option.
Answer:
21.......celcius scale is used....as the thermometer shows 100...and water boils at 100 degree Celsius.....( shown that water is boiling)...
22......liquid to gas
Answer:
A) 44.25 hours
Explanation:
To round time to the nearest quarter-hour, round those times within 7 minutes of a 15-minute mark to that 15 minutes.
Thus, the time in and time out are rounded to the nearest quarter-hour in the table below:
Next, add the differences:
![\begin{gathered} Total=9:15+8:45+9:00:8:15+9:00 \\ =43hours+(15+45+15)minutes \\ =44\text{ hours 15 minutes} \\ =44+\frac{15}{60} \\ =44.25\text{ hours} \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20Total%3D9%3A15%2B8%3A45%2B9%3A00%3A8%3A15%2B9%3A00%20%5C%5C%20%3D43hours%2B%2815%2B45%2B15%29minutes%20%5C%5C%20%3D44%5Ctext%7B%20hours%2015%20minutes%7D%20%5C%5C%20%3D44%2B%5Cfrac%7B15%7D%7B60%7D%20%5C%5C%20%3D44.25%5Ctext%7B%20hours%7D%20%5Cend%7Bgathered%7D)
She worked a total of 44.25 hours.
Option A is correct.
We can use completing the square.We add 16 and subtract 7 to both sides. Now we get m^2+8m+16=9. The left sides becomes (m+4)^2=9. Taking the square root of both sides and subtracting 4 we get -1 and -7.
The probability that the spinner land on 5 in two successive spins is 1/100.
Step-by-step explanation:
Total numbers on the spinner = 10
Probability that the spinner land on 5 for the 1st time = 1/10
Probability that the spinner land on 5 in two successive spins = (1/10) x (1/10)
= 1/100
The probability that the spinner land on 5 in two successive spins is 1/100.