A. increase the temperature.
For example, sugar dissolves easily in hot water, but not in cold water(?)
Answer:
Step-by-step explanation:
Remember to use your exponent rules
Rates of change are the change of a quantity over another.
The rate of change of the mass position at 2.1 seconds is -89.6 cm/ s
The given parameters are:
-- the amplitude
--- the period
The position of the mass is modeled by:
Where:
So, we have:
becomes
Differentiate
When t = 2.1, we have:
Approximate
Hence, the rate of change of the mass position at 2.1 seconds is -89.6 cm/ s
Read more about rates at:
brainly.com/question/15579510
Well, in percentages, Other = 100% - 40% - 37,5% = 22,5%
In numbers, Other = 18.
If 18___22.5%=0.225
Then x___100%=1
So x = (18*1)/0.225 = 18/0.225 = 80, and 80 is the first answer, the number of students participated.
For second question, which is how many chose football, we have:
x_____37.5%=0.375
18____22.5%=0.225
x = (18* 0.375) / 0.225 = 30
The second answer is 30.