Answer:
A: 5 cm2
B: 9 3/8 cm2
Step-by-step explanation:
Question A:
4 x 1 1/4
4/1 x 5/4 = 20/4
20/4 = 5 cm2
Question B:
3 3/4 x 2 1/2
15/4 x 5/2 = 75/8
75/8 = 9 3/8 cm2
Answer:
a. 1056 ft
b. 52.8 ft
Step-by-step explanation:
1 mile = 5280 feet
a.
Therefore 1/5 of a mile is 1056 feet.
b.
Therefore 1/100 of a mile is 52.8 feet
Answer:
(3) Driving in a straight line at 100 kilometers per hour
Step-by-step explanation:
let us see each at a time.
(1) Slaming on the brakes causes the speed to become 0units/sec and car comses to rest. the car experiences deceleration (negative acceleration), we can role this one out.
(2) Going from 0 to 100Kilometers per hour, speed increases from 0 to 100km/s in 10 seconds that is acceleration. we can rule this one out.
(3) Driving in a straight line with 100km/hour velocity, here we have constant velocity and there is no acceleration so in this case we are not accelerating.