Answer:
They have opposite signs. if x=16 then y should be -16 for their sum to be zero.
Enter them into a calculator (most significant digit first), pressing the "+" key between them and the "=" key after the last one.
Answer:
4-
-
Step-by-step explanation:
Let c be the hypotenuse in miles.
72 + 92 = c2
49 + 81 = c2
130 = c2
130‾‾‾‾√ = 2‾‾√
130‾‾‾‾√ = c
11.4 ≈ c
The path along Riverside Drive is shorter, about 11.4miles, compared to the path along Cypress and Control Avenues, 16 miles. The difference is about 4.6 miles. The Pythagorean theorem allowed me to calculate the distance along Riverside Drive because the three roads from a right triangle.