Answer:
3.72 x 10^6
5.68 x 10^5
1 x 10^6
4.3 x 10^4
7.5 x 10^7
5 x 10^-11
8.6 x 10^-3
2.7 x 10^-4
1.9 x 10^-2
6 x 10^-6
right side of page
520 000 000
8 000 000
49 000
0.000000248
0.00036
0.000007132
Step-by-step explanation:
its just moving the point.
3.72 x 10^6 you moved the point 6 times to the left so its positive.
5 x 10^-11 moved it 11 times to the right so its negative
(a) (i) In first 4 minutes Mary's speed was 600 / 4 = 150 m / minute
(ii) in last 4 minutes her speed was (1000-600) / 4 = 400/4 = 100 m/min
(b) Marys average speed for the whole journey = 1000/8 = 125 m/min
(c) 200 m
(d) Peter arrived at school after 7 minutes . Mary took 8 minutes. Peter first.
(e) Where they met is given by where the 2 curves intersect. That is at time 6.8 minutes and 880 m from Mary's home
(f) At t= 4 dsitance between then is 600 - 400 = 200 m
Answer:
75 gallons
Step-by-step explanation:
50 + 50/2 = 75
50 + 25 = 75
