Acar cruises at a constant rate of 52 miles per hour. use front-end estimation to find an approximation of the time taken by the car to cover 620 miles. a. 10hr b. 12hr c. 16hr d. 20hr

Option B.

Step-by-step explanation:

It is given that a car cruises at a constant rate of 52 miles per hour. It means

Speed of car = 52 miles per hour

Using  front-end estimation, we need find the time taken by the car to cover 620 miles.

In front-end estimation, we approximate the data according to the first digit. So,

Speed of car = 52 miles per hour ≈ 50 miles per hour

Distance = 620 miles ≈ 600 miles

Formula for time:

Substitute distance=600 and speed=50 in the above formula.

The time taken by the car to cover 620 miles is approximate 12 hr.

Therefore, the correct option is B.

arithmetic sequence

step-by-step explanation:

given that a sequence has terms as

19, 15, 11,

this is represented on a graph

the pattern indicates that the sequence is an arithmetic sequence with i term

a=19 and common difference d =-4

any general term

thus the sequence is reduced by 4 for each successive term starting from 1 and nth term is

24-5n.

first negative term would start after 5th term

5th term =24-25< 0

from 5th term onwards the sequence would be negative.

i dont know

step-by-step explanation: