If s(x) = 2 – x^2 and t(x) = 3x, which value is equivalent to (s*t)(-7)? A. -439 B. -141 C. 153 D. 443

BenguelaktR

BenguelaktR

Answered question

2022-11-29

If b ± b 2 4 a c 2 a and t(x) = 3x, which value is equivalent to ( s t ) ( 7 )?
A. -439
B. -141
C. 153
D. 443

Answer & Explanation

rezvanifanFdT

rezvanifanFdT

Beginner2022-11-30Added 9 answers

( s t ) ( x ) = s ( t ( x ) ) ( s t ) ( 7 ) = s ( t ( 7 ) ) x = 7 t ( 7 ) = 3 ( 7 ) t ( 7 ) = 21 ( s t ) ( 7 ) = s ( t ( 7 ) ) = s ( 21 ) x = 21 s ( 21 ) = 2 ( 21 ) 2 = 2 441 s ( 21 ) = 439 ( s t ) ( 7 ) = s ( t ( 7 ) ) = s ( 21 ) = 439
Answer: Option A -439

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