Answer:
a) Speed of the cyclist is (2.75/0.4) = <u>6.875 miles per hour</u>.
b) It will take (5.5/6.875) = <u>0.8 hours</u> to travel 5.5 miles at this rate.
- Remember: Speed=Distance/Time
Factor by groupins
x^2 + xy - 2x - 2y
= x(x + y) - 2(x + y)
= (x - 2(x + y)
Square roots and squaring are always nonlinear.
The answer is 40 your welcome