Since 7x7=49 it will be 7 cause 49 divided by 7 IS 7.
Hope I helped!!!
A right angle would be the correct answer
Answer:
Step-by-step explanation:
Diameter = 84 km
Radius = 84/2 = 42 km
Area of circle = πr²
= 3.14 * 42 * 42
= 5538.96 km²
2x^2-7x-18x+63
2x^2-25x+63