Mathematics: Given the function f(x) = 5x2 - 9x + 18, find f(3). A) f(3) = 31 B) f(3) = 36 B) f(3) = 49 D) f(3) = 85

Given the function f(x) = 5x2 - 9x + 18, find f(3).

Ответ:

daniel1480

22.01.2022

Mathematics

f(3) = 36

Step-by-step explanation:

To evaluate f(3) substitute x = 3 into f(x), that is

f(3) = 5(3)² - 9(3) + 18 = 5(9) - 27 + 18 = 45 - 27 + 18 = 36

0,0(0 оценок)

Ответ:

gymnastsgymnastics

22.01.2022

Mathematics

f(3)= 36

Step-by-step explanation:

F(x)=5x2-9x+18

Looking at this equation;

F(x)=f(3)

I.e substitute

X=3

Substitute for x=3 in f(x)

F(3)= 5(3)2-9(3)+18

F(3)= 5(9)-27+18

F(3)= 45-27+18

F(3)= 36

So final answer is

F(3)= 36

0,0(0 оценок)

Ответ:

jenna3490

06.03.2023

Mathematics

$72^{63}\\\\72=2\cdot2\cdot2\cdot2\cdot3\cdot3=2^4\cdot3^2\\\\72^{63}=(2^4\cdot3^2)^{63}=(2^4)^{63}(3^2)^{63}=2^{152}\cdot3^{126}$

$24^{54}\cdot54^{24}\cdot2^{10}\\\\24=2\cdot2\cdot2\cdot3=2^3\cdot3\\54=2\cdot3\cdot3\cdot3=2\cdot3^3\\\\24^{54}=(2^3\cdot3)^{54}=(2^3)^{54}\cdot3^{54}=2^{162}\cdot3^{54}\\\\54^{24}=(2\cdot3^3)^{24}=2^{24}\cdot(3^3)^{24}=2^{24}\cdot3^{72}\\\\24^{54}\cdot54^{24}\cdot2^{10}=2^{162}\cdot3^{54}\cdot2^{24}\cdot3^{72}=2^{162+24}\cdot3^{54+72}=2^{186}\cdot3^{126}\\\\=2^{34+152}\cdot3^{126}=2^{34}\cdot\underbrace{2^{152}\cdot3^{126}}_{72^{63}}=2^{34}\cdot72^{63}$

$24^{54}\cdot54^{24}\cdot2^{10}=2^{34}\cdot72^{63}\\\\\text{therefore it is divisible by}\ 72^{63}$

$Used:\\\\(ab)^n=a^nb^m\\\\(a^n)^m=a^{nm}\\\\a^n\cdot a^m=a^{n+m}$

0,0(0 оценок)

Given the function f(x) = 5x2 - 9x + 18, find f(3).

A) f(3) = 31
B) f(3) = 36
B) f(3) = 49
D) f(3) = 85

Ответ:

Ответ:

Ответ:

Ask your question to the AI advisor

More tips

Answers on questions: Mathematics

Ask an AI advisor a question