BÀI KIỂM TRA 15 PHÚT HKI MÔN TOÁN LỚP 10

Trường THPT Nguyễn Việt Khái Họ và tên:…………………………... Lớp:………. Điểm Thứ Ngày Tháng Năm 2009 BÀI KIỂM TRA 15 PHÚT Môn:Toán Nhận xét của giáo viên Đề bài: Giải các phương trình và hệ phương trình sau bằng máy tính bỏ túi: a) –3x2 + 2 4 x+ =0 5 7 Kết quả (làm tròn đến 2 chữ số hàng thập phân) là: ……………………………………………………………..  4x + 2y =−3  b)  3x +5y =1  Kết quả viết dưới dạng phân số là: ………………………………………………………………………………. ......................................................................................................................................................................................... ......................................................................................................................................................................................... ......................................................................................................................................................................................... ......................................................................................................................................................................................... ......................................................................................................................................................................................... ......................................................................................................................................................................................... ......................................................................................................................................................................................... ......................................................................................................................................................................................... 2 Trường THPT Nguyễn Việt Khái Họ và tên:…………………………... Lớp:………. Điểm Thứ Ngày Tháng Năm 2009 BÀI KIỂM TRA 15 PHÚT Môn:Toán Nhận xét của giáo viên Đề bài: Giải các phương trình và hệ phương trình sau bằng máy tính bỏ túi: 7 2 a) x2 + x − = 0 5 5 Kết quả (làm tròn đến 2 chữ số hàng thập phân) là: …………………………………………………………….. 8x + 4y =−6  b)   −3x −5y =−1  Kết quả viết dưới dạng phân số là: ………………………………………………………………………………. ......................................................................................................................................................................................... ......................................................................................................................................................................................... ......................................................................................................................................................................................... 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