A chemist cooled a solution of magnesium sulfate and water. The graph shows the temperature of the solution over time.
Temperature (°C)
30
20
10
10
Time (minutes)
What does the slope of the line represent?
A The average temperature of the solution was 6°C.
B The temperature of the solution decreased until it was 6°C.
C The temperature of the solution decreased by 6°C per minute.
D The temperature of the solution increased by 6°C per minute.

Find the average rate of change for f(x) = x2 − 3x − 10 from x = −5 to x = 10.

Jada has a monthly budget for her cell phone bill. last month she spent 120% of her budget, and the bill was 60$. what is jada’s monthly budget

Adecibel is a logarithmic unit that can be used to measure the intensity of a sound. the function y = 10logx gives the intensity of a sound in decibels, where x is the ratio of the intensity of the sound to a reference intensity. the reference intensity is generally set at the threshold of hearing. use the graphing utility to graph the decibel function.a whisper has a sound intensity of 30 decibels. use your graph to you complete the following statement. the sound intensity of a whisper is times the reference intensity.