Al-Xorazmiyning tenglamani yechishdagi val-muqobala usulining mohiyati …
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TEST 7
79. Tenglamalar sistemasini qanoatlantiruvchi sonlar juftligini aniqlang A) (2; 3) B) (-2; 3) C) (3; 2) D) (-2; -3) E) (-3; 2) 80 . x ni toping: A) 2 B) C) D) 1 E) –1 81.(x; y) sonlar jufti sistemaning yechimi bo’lsa, y+x ni toping A) 3 B) –3 C) 4 D) –1 E) 0 82. Koordinata tekisligida abssissasi musbat, ordinatasi manfiy bo’lgan nuqta qaysi chorakda yotadi? A) I B) II C) III D) IV E) I va II 83. Funksiyaning berilish usullarini ko’rsating 1) tenglama 2) masala 3) formula 4) grafik 5) jadval 6) noma’lumlar orqali A) 1, 2, 3 B) 2, 3, 4 C) 3, 4, 5 D) 4, 5, 6 E) 1, 5, 6 84. Ikki sonning o’rta arifmetigi 7 ga, kvadratlarining ayirmasi 14 ga teng. Shu ikki son kvadratlarining yig’indisini toping A) 98,5 B) 56,25 C) 42,25 D) 96,5 E) 99,5 85. Uchta sonning nisbati 1:2:6 ga, ularning yig’indisi esa 459 ga teng. Shu sonlardan eng kattasining va eng kichigining ayirmasini toping A) 245 B) 255 C) 235 D) 275 E) 265 86. Tenglamalar sistemasini yeching: A) (1; -1) B) (0; 1) C) (0; 0) D) (1; 0) E) yechimga ega emas 87. Funksiya S= 60 ·t formula bilan berilgan. S (3,5)ni aniqlang A) 210 B) 150 C) 24 D) 124 E) 250 88. y=2x+3 formula bilan berilgan funksiyada x ning –1 qiymatiga mos keluvchi y ning qiymatini toping Download 136.29 Kb. Do'stlaringiz bilan baham: |
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