Question

If s(x) = 2 – x2 and t(x) = 3x, which value is equivalent to (s t)(-7)? A. -439 B. -141 C. 153 D. 443 please answer quick this test is timed!

Answer 1

We're trying to find $s(t(-7))$.

$t(-7)=3(-7)$

$t(-7)=-21$

$s(-21)=2-(-21)^2$

$s(-21)=2-441$

$s(-21)=-439$

Hope this helps.

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