Answer: 5.3 Hours
Step-by-step explanation: 140 mi there at 56 mi per hour would be 2.5 hours. Then back 140 mi at 50 mi/h would be 2.8. 2.5 plus a 2.8 is 5.3 hours
When x=-5, y=(1/5)*(-5)-1=-2, so the first order pair is (-5,-2)
when y=-1, -1=(1/5)x-1, (1/5)x=0, x=0, so the second ordered pair is (0, -1)
-15.18 is the answer and you have added a = sign by mistake
Answer:
numbers expressed using exponents are called powers
Area of full circle= πr^2
Area of a quadrant= πr^2/4
=(3.5)^2π/4
=12.25π/4
=3.06πcm squared.
