The answers, in order, D B A B B A D C B D
(It's up to you, but I think taking some time to redo the lesson would help a lot in your next test :))
Answer:
a = 9
b = 7
Explanation:
For the given polynomial 2x³ - ax² + bx + 6 to be exactly divisible by x² - 5x + 6, it means it must also be divisible by the individual factors of x² - 5x + 6.
So let's factorize x² - 5x + 6.
Factorizing it gives us;
(x - 2)(x - 3)
Thus means that the given polynomial should be exactly divisible by either (x - 2) or (x - 3).
This means that at x = 2 or 3, the polynomial will equal zero.
Thus;
f(2) = 2(2)³ - a(2)² + b(2) + 6 = 0
16 - 4a + 2b + 6 = 0
Adding and Rearranging we have;
4a - 2b = 22
Divide through by 2 to get;
2a - b = 11 - - - (eq 1)
Similarly;
f(3) = 2(3)³ - a(3)² + b(3) + 6 = 0
54 - 9a + 3b + 6 = 0
Adding and Rearranging we have;
9a - 3b = 60
Divide through by 3 to get;
3a - b = 20 - - - (eq 2)
Subtract eq 1 from eq 2 to get;
3a - 2a - b - (-b) = 20 - 11
a = 9
Put 9 for a in eq 2 to get;
3(9) - b = 20
27 - b = 20
b = 27 - 20
b = 7
Sentence: I like the green skirt but my parents ________ the blue dress?
A) prefer
B) think
C) like
D) i want
The correct answer is.......C, like
Answer:
I hope I have been helpful.
El desarollo cientifico y tecnologico han tenido un impacto tecnologico muy grande en nuetras vidas diarias,hoy en un dia la tecnologica nos facilita las cosas de una forma en la que nosotros somos capaces de hacer cosas mas rapidas y eficacès.