Avaliação Bimestral de Matemática - 1º Ano - 1 Bimestre
-
Upload
veronica-nanci-peres-ledis -
Category
Documents
-
view
37 -
download
0
Transcript of Avaliação Bimestral de Matemática - 1º Ano - 1 Bimestre
Avaliao Bimestral - 1 ano - 1 Bimestre
Nome:___________________________________________N________Srie:_______
1) Uma progresso aritmtica finita possui 39 termos. O ltimo igual a 176 e o central e igual a 81. O primeiro termo -14. Qual a razo?______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
2) Sabendo que o primeiro termo de uma PA 5 e a razo 11, calcule o 13otermo:______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
3) Dados a5= 100 e r = 10, calcule o primeiro termo: ______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
4) Sendo a7= 21 e a9= 27, calcule o valor da razo: ______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
5) (UFRGS) Em uma Progresso Aritmtica, em que o primeiro termo 23 e a razo -6, a posio ocupada pelo elemento -13 :(A) 8a(B) 7a(C) 6a(D) 5a(E) 4a
6) (UCS) O valor de x para que a seqncia (2x, x+1, 3x) seja uma PA :(A) 1/2(B) 2/3(C) 3(D) 1/2(E) 2
7) Interpole 10 meios aritmticos entre 5 e 38, teremos uma PA de razo:______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________(____,____,____,____,____,____,____,____,____,____)
8) Quantos meios devemos interpolar entre 112 e 250 para termos uma PA de razo 23?______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
9) Se numa PA o quinto termo 30 e o vigsimo termo 60, qual a razo?______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________10) Qual o nmero de termos da PA: ( 100, 98, 96, ... , 22) ?______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Boa Avaliao! Prof Vernica Peres