PEMDAS...parentheses, then exponents, then multiplication/division, finally addition/subtraction...
22+(3^2-4^2) inside the parentheses are exponents, so they are calculated first.
22+(9-16) now you complete the operations inside the parentheses
22+(-7) finally you do your addition/subtraction
22-7
15
Answer:
23
Step-by-step explanation:
So we want to write a fraction that is less than 5/6 and has a denominator of 8. So lets start from 1/1 that is greater then 5/6 and doesn't have 8 as a denominator. Lets take one half from 1/1 and well get 1/2.
Integers are numbers and absolute value is the magnitude of the numbe non dependent of its sign (absolute value is the number as a positive) ex; the absolute value of -3 is 3... and if the original number is positive it stays the same so ex; the abosolute value of 8 is 8
Area = πr² ⇒
81π = πr² ⇒ 81 = r² ⇒ r = √81 = 9 in
<span>Circumference = 2</span>πr = 2*9*π = 18π in
