A)
8^2+9^2=c^264+81=c^2
c^2=145c=sqrt 145c=12.04
B)
Pythagerean Theorum:
A^2+B^2=C^2, where C is the hypotenuse and A and B are the other legs
15^2=9^2+B^2
225=81+B^2
225-81=B^2
144=B^2 (square root both sides)
12=B
Answer:
The answer is 2
Step-by-step explanation:
Multiply the numerator and denominator by the conjugate.
Answer:
The correct answer is if you want no roots in the denominator, the correct answer is *
Step-by-step explanation:
The mistake is that you can't take a cube root of a square at step 3 when is taken out.