Vthe speed of sound is approximately 768768768 miles per hour. when an object travels faster than the speed of sound, it creates a sonic boom. write an inequality that is true only for speeds (s)(s)left parenthesis, s, right parenthesis at which a moving object creates a sonic boom.

The Inequality is true at which a moving object creates a sonic boom.

Step-by-step explanation:

Given:

Speed of Sound = 768 miles per hour

Also Given:

When an object travels faster than the speed of sound, it creates a sonic boom.

We need to find the inequality which is true only for speeds (s) at which a moving object creates a sonic boom

So We can say;

When;

 ⇒ Normal sound no sonic boom (false)

 ⇒ speed of sound but no sonic boom (false)

 ⇒ sonic boom is created (True)

Hence The Inequality is true at which a moving object creates a sonic boom.

  or  

step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or  

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,