What value of x is in the solution set of 9(2x + 1) < 9x – 18? –4 –3 –2 –1

-4

Step-by-step explanation:

9(2x + 1) < 9x – 18

Divide each side by 9

9/9(2x + 1) < 9x/9 – 18/9

2x+1 < x-2

Subtract x from each side

2x+1-x < x-2-x

x+1 < -2

Subtract 1 from each side

x+1-1 < -2-1

x < -3

The only value less than -3 is -4

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles