I might just give two of them.
28. y=45°,
13x13=169
169/2=84.5
√84.5=x
x=2√21+√2/2
31. (5√2)²=50
50/2=25
x=√25=5
(5√2)²+(5√2)²=100
y=√100=10
Those are your answer.
Answer:
distance = 5+4 = 9 miles
(distance that a person travel)
displacement = 5-4 = 1miles
(displacement is the distance between the starting point and ending point)
distance≠displacement
All spheres are similar because there are no other configuration of spheres except for being perfectly round three-dimensionally. Similar shapes are shapes where angles are similar as well as the sides which can just be determined through ratio and proportion
2.178 x 10^6, is your answer. If you'd like to work, just ask.
