Hi there!
The formula for the area of a circle is A = pi x r^2. Using this formula, we can plug in the radius and solve for the area.
WORK:
A = pi x (5)^2
A = pi x 25
A = 25pi cm^2
ANSWER:
B - 25pi cm^2
Hope this helps!! :)
If there's anything else that I can help you with, please let me know!
3
This is because the area of a rhombus is A=sh
since the height is 4 mm, and the area is 12mm^2 the length is 3
Ok so this all about subtracting fractions this is what you want to do:
you can change 8 3/4 and 4 2/3 to have the same value and deominator
8 3/4 = 8 9/12(multiply both sides by 3)
4 2/3 = 4 8/12(multiply both sides by 4)
you do this because 12 is divisible by 3 and 4
then, subtract 4 8/12 from 8 9/12 because John is using some of the wood his dad gave him.
then subtract once again, taking 11/2 away from your difference.
again match the deominator of 11/2 to the deominator of your difference which should be 12. another divisible of 12 is 2 and 6.
11/2 = 66/12 = 5 6/12(multiply both the top and bottom by 6)
and start subtracting.
so John should have -1 5/12(?) wood left
y is part of a right angle on line AB
a right angle = 90 degrees
90-47 = 43 degrees
y = 43 degrees
a straight line = 180 degrees
180-47 = 133 degrees
x = 133 degrees
Answer: 6 times 10 Superscript 11
Step-by-step explanation:
Scientific notation is in the form ;
A.0 x 
,
where :
A = any number from 1 to 9
n = integers , that is , n must be whole numbers
Following this rule , the correct answer is
6 x 
which is 6 times 10 Superscript 11
