Answer:
x = 4.5
Step-by-step explanation:
First, we can subtract 2 from 20 (20 - 2) to get 18.
Now we know that x has to be multiplied by 4 and have a product of 18.
We can divide 18 by 4 to figure out what x is.
18 ÷ 4 = 4.5
We can check our answer by solving the equation:
4(4.5) + 2 = 20
18 + 2 = 20
20 = 20
(sorry if this is confusing but I hope it helped)
The range to this question in set notation is (-infinity, positive infinity).
Answer:
91.6
Step-by-step explanation:
The formula to find the area of a circle is A=πr^2. we are given the radius so if we plug it in and use 3.14 for pi we get. 3.14*5.4mi^2. This equals 91.5624 mi, rounded to the nearest tenth it is 91.6 mi.
The first car is traveling at 65 miles per hour and the second car is traveling at 62 miles per hour.
Explanation:
390:x=372:(x-3)
372x=390(x-3)
372x=390x-1170
1170=390x-372x
1170/18=18x/18
x=65
x-3= 65-3=62
