Will give *65+* points and brainliest to whoever can answer these 3 : (long)
sadie and n...
Mathematics, 17.10.2019 21:20 jalaholmes2027
Will give *65+* points and brainliest to whoever can answer these 3 : (long)
sadie and nikhil are racing toy cars on several parallel line straight lined-tracks that start from a wall.
car a is places on the front track. the function a defined by a (x) = 30x+10 models the distance from the wall, in centimeters (cm) of car a in terms of the time x, in seconds, after the car was placed.
car b is placed on the second track. the table gives the distance from the wall, in cm, of car b for the first few second after the car was placed on the track. assume car b is travelling at a constant speed.
time
distance of car b from wall
(seconds) (cm)
0 5
1 30
2 55
3 80
(question 1)
in this context, what is the best interpretation of the number 10 in the function a(x) = 30x +10?
a. the speed, in centimeters per second of car a 30 seconds after he car is placed on the track
b. the distance, in centimeters, car a is from the wall 30 seconds after the car is placed on the track
c. the speed, in centimeters per second, of car a at the moment the car is placed on the track
d. the distance, in centimeters, car a is from the wall at the moment the car is placed on the track.
(question 2) how many seconds after being placed on the track will car b reach a point 105 cm on the wall?
a. 4
b.6
c.8
d.12
(final question)
time distance of car c
(seconds) from wall (cm)
0 15
1 35
2 55
3 75
car c was placed on its track at the same time as car a. the table shows the distance from the wall, in cm, of car c for the first few seconds at it was placed on the track. if car c is traveling at a constant speed, after how many seconds will car c be the same distance from the wall as car a?
a. 0.5
b. 1
c. 10
d. 20
Answers: 1
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