Answer:
c is correct.
Step-by-step explanation:
First we simplify the expressions of the parties, and when we get to the two fractions, we multiply the cross, and the answer is obtained.
![\frac{89}{2725} > \frac{1989}{2500000} \\ \\ \\ 89 \times 2500000 > 1989 \times 2725 \\ \\ 222500000 > 5420025](https://tex.z-dn.net/?f=%20%5Cfrac%7B89%7D%7B2725%7D%20%20%3E%20%20%5Cfrac%7B1989%7D%7B2500000%7D%20%20%5C%5C%20%20%5C%5C%20%20%5C%5C%2089%20%5Ctimes%202500000%20%3E%201989%20%5Ctimes%202725%20%5C%5C%20%20%5C%5C%20222500000%20%3E%20%205420025)
It should be noted that with a few quick calculations the correct option was reached.
Answer:
1/8
Step-by-step explanation:
Look at the screen shots
Answer:
The train traveled 90 miles in 40 minutes.
Step-by-step explanation:
40 minutes is
of an hour. Because the speed is in miles/hour, we just need to multiple the distance by the time in hours to get the new distance.
135 ×
= 90 miles
The train traveled 90 miles in 40 minutes.
A graphing calculator shows the x-intercepts of the expression on the left to be -1, 4, 7.
The real solutions to the cubic equation are x ∈ {-1, 4, 7}.