To get the area of the half circle, do π r².
Let's use 3.14 as pi.
First square 2 to get 4 then multiply it by 3.14 to get 12.56. Since this is a half circle we have to divide it by 2 for the area: 6.28.
Then for the triangle multiply 6 times 2 (12) then divide it by 2 to get 6. Then add the two together to get 12.28 then round to the nearest tenth to get a final answer of 12.3 m². Hope this helps!
Hello!
Since the denominator of both fractions is equivalent, you can simplify both of the fraction's numerator.
5a² - 6 + -6a² + 3
-a² - 3
Then, you can factor out a negative one from the numerator.
-(a² + 3)
Therefore, your final answer is .
48.5 (bigger dog's weight) − 24.8 (smaller dog's weight) = 23.7 pounds (the difference between the two)
Answer: 2300.
Explanation:
There are 1000 millimeters in a meter.
There are 100 centimeters in a meter.
There are 10 millimeters in a meter.
Multiply the number of meters by 1000 giving us 2000.
Multiply the number of centimeters by 100 giving us 300.
Add the numbers together to get 2300.
Bonus info
Milli: 1000
Centi: 100
That information should probably help you with other measurement conversions when you take chemistry or physics.
Have a nice day! :) Good luck with the rest of middle school.