Answer:
the temperature is 10 degrees F at 7 pm, and -2 degrees F at 7 am the next morning. How much did the temperature change between 7 pm and 7 am
Using the current "regular expressions" in use in Java, Perl, and many other applications, this belongs to "character class" using the [ ] notation.
For characters "either" 1,2,3,4, we write
[1234]
or in this particular case,
[1-4]
First, you find what 25% of $450.To do that, make 25% into a decimal, which is 0.25.Then you multiply 450 times 0.25 which is 112.5
Second, you find what 5% of 450. 5% as a decimal is 0.05. Then you multiply 450 times 0.05 which is 22.5
Third, you add 450+112.5+22.5 which is 585.
There you go. :) Hope that helped!
πr2 is an example of a (D) model.
<h3>What exactly is a model?</h3>
- A mathematical model is a system description that makes use of mathematical concepts and language.
- The process of developing a mathematical model is known as mathematical modeling.
- Natural sciences (physics, biology, earth science, chemistry), engineering disciplines (computer science, electrical engineering), and non-physical structures such as the social sciences all use mathematical models (such as economics, psychology, sociology, and political science).
- The use of statistical equations to solve problems in business or military operations is a large part of the field of operations research.
- Mathematical models are used in music, linguistics, and philosophy (for example, intensively in analytic philosophy).
- A model is, for example, the πr2 method for calculating the area of a circle.
Therefore, πr2 is an example of a (D) model.
Know more about models here:
brainly.com/question/15892457
#SPJ4
The complete question is given below:
Mia uses the formula πr2 to find the area of a circle. What is πr2 an example of?
A. a robot
B. a car
C. a telescope
D. a model
