poojaaa1
poojaaa1
31-03-2018
Mathematics
contestada
Can somebody help me????
Respuesta :
WojtekR
WojtekR
31-03-2018
[tex]f(x)=5x^2-3\\\\\\ f(x+a)=5(x+a)^2-3=5(x^2+2ax+a^2)-3=\\\\=\boxed{5x^2+10ax+5a^2-3}[/tex]
On the other hand:
[tex]f(x+a)=5x^2+30x+42[/tex]
so:
[tex]10ax=30x\\\\10a=30\qquad|:10\\\\\boxed{a=3}[/tex]
Answer C.
Answer Link
VER TODAS LAS RESPUESTAS ( 28+ )
Otras preguntas
True or false? Effective Communication comes naturally to most people and doesn’t require a lot of practice to master
one advantage of using thin layer chromatography over paper chromatography
Which of the following points has coordinates that are 5 horizontal units from point A? A. left parenthesis 3 comma 2 right parenthesis B. left parenthesis 3
*help please* What is the amplitude of the function graphed?
what are the limits on free speech
Why is it harder than ever now for humans to make decisions and what does the brain do when we make decisions?
You have free speech but government can _____ ______ profane or threatening speech.
Describe the set of numbers using interval notation. x > 8 or x ≤ 2 A. [2, 8) B. (–∞, 2] ∩ (8, ∞) C.(–∞, 2] ∪ (8, ∞) D. (–∞, 2) ∪ (8, ∞)
Entrepreneurs are people who
Which situation shows a constant rate of change
