Answer:
4th option
Step-by-step explanation:
The given expression is:
In order to simplify this expression we have to multiply and divide it with the conjugate of the denominator i.e multiply and divide the entire expression with 
, as shown below:
Thus, 4th option gives the correct answer.
Answer: the area is 20 square centimeters.
Step-by-step explanation:
The area of an arc of angle x in a circle of radius r is:
A = (x/3.14)*3.14*r^2 = x*r^2
here we have x = (4/5)*3.14 and r = 5cm
Then the area is:
A = (4/5)*(5cm)^2 = 20cm^2
The answer would be:
-2(x+1)
Answer:
i dont know what this language is
Step-by-step explanation:
please help me learn this language
