Answer: The number can be used to express the change in temperature= -14
Step-by-step explanation:
Given: The temperature in evening dropped by
.
Thus, the change in temperature = 
Since the temperature in evening is dropped or decreased , thus in integers the change in temperature = 
Therefore, the number can be used to express the change in temperature= -14
Answer:
18 centimeters
Step-by-step explanation:
Divide the circumference by π, or 3.14 for an estimation. The result is the circle's diameter.
Divide the diameter by 2.
There you go, you found the circle's radius
Answer:
81%
Step-by-step explanation:
Set up a proportion. 2900 / 36 is approximately 81 percent. So, approximately 81 percent of the crew members showed up for work.
Answer:
1 time unit
Step-by-step explanation:
There is a 1 in 3 chance that the time until the bulb burns out is zero, and a 2 in 3 chance that the time is the average between 0 and 3 (since it is uniformly distributed). Therefore, the expected value for the time until it burns is:

The expected value of the time until the lightbulb burns out is 1 time unit.
Answer:

Step-by-step explanation:
You multiply it by itself 4 times, therefore being 18 to the power of 4