Question

If s ( x ) = 2 - x² and t ( x ) = 3x, what is s ( t ( -7 ) )?

Answer 1

Answer:

- 439

Step-by-step explanation:

• s ( x ) = 2 - x²
• t ( x ) = 3x
• s ( t ( -7 ) ) = ?

--------------------------

• t (-7) = 3 * ( -7 ) = -21
• s ( t ( -7 ) ) = s ( -21 ) = 2 - ( -21 )² = 2 - 441 = - 439
• s ( t ( -7 ) ) = -439