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bullsfan4584
01.08.2019 •
Mathematics
Consider the functions f(x) = 3x2 and g(x) = −2x − 5. what is the value of f[g(−4)]? 1. 9 2. −31 3. 27 4. 3
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Ответ:
The value of function f[g(−4)] is 27 .
Step-by-step explanation:
As two function given in the question
f(x) = 3x²
g(x) = −2x − 5
f[g(-4)] = f [-2 × -4 -5]
= f [8 -5]
= f [3]
= 3 × 3²
( As 3² = 9 )
= 3 × 9
= 27
Therefore the value of function f[g(−4)] is 27 .
Ответ:
Step-by-step explanation:
20 = 2²×5
24 = 2³×3
then
LCM(20 , 24) = 2³×3×5 = 8×(3×5) = 8×15 = 120