Well for 3. you use the Pythagorean theorem to say that 28^2 - 18^2= x^2 so 21.4 and for 4. the Pythagorean theorem says a^2 + b^2 = c^2 with c being the hypotenuse of any right triangle so the sums of the two smaller squares make the sum of the larger square making the answer b
Answer:
Step-by-step explanation:
four twelfths minus two twelfths equals two twelfths
The fraction is 31/100, the decimal is 0.31 which means your simplest form is 31/100
