Question

HelpPlease!!! If s(x)= 2-x2 and t(x)=3 which value is equivalent to s•t(-7)

Answer 1

i think the answer is d

Answer 2

Answer:

The correct answer option is -439.

Step-by-step explanation:

We are given the following two functions and we are to find the value of $( s o t ) ( -7 )$:

$s ( x ) = 2 - x ^ 2$ and $t ( x ) = 3$

$(s o t)(x)=s(t(x))$

$(s o t)(-7)=s(t(-7))$

$x=-7$ → $t(-7)=3(-7)$ → $t(-7)=-21$

$(s o t)(-7)=s(t(-7))=s(-21)$

$x=-21$ → $s(-21)=2-(-21)^2=2-441$ → $s(-21)=-439$

$(s o t)(-7)=s(t(-7))=s(-21)=-439$