books for grade 9

Chris purchased 8 Mathematics(M), 6 English(E), 9 Phyics(P) and 5 Geography(G) books for grade 8(G8) and 10 Mathematics(M), 8 English(E), 12 Phyics(P) and 6 Geography(G) books for grade 9(G9). Put the information in matrix form. ..

"Nine hundred and seventy seven less than a number is greater than or equal to four hundred and fifty nine". Which of the following choices can be the number? => 1234 or 1436 or 1230 or 1435..

Find nine hundred ninety in standard form. => 990 or 9090 or 90090 or 90900..

Find the appropriate time for nine minutes to four in the afternoon. => 3:51 P.M or 9:04 A.M or 4:51 A.M or 4:09 P.M..

Identify the number 'Ninety-five million, two hundred forty-four thousand, nine hundred ninety-nine' in standard form. => 95, 999 or 9, 525, 599 or 95, 255,333 or 95, 244,999..

A book store has a total stock of 25 books of 4 th , 5 th , 6 th and 7 th grades. The table shows the number of books of each grade. Find the number of books of 4 th grade. Grade Frequency 4 th ? 5 th 6 6 th 9..

Question: Solve the following equation: Answer: 4x + 7 = -3 (2x + 1) (By cross-multiplication) 4x+7=-6x-3 4x+6x=-3-7 10x=-10 x=-..

Question: What are homologous series? Write a short note. Answer: The extremely large numbers of carbon compounds discovered so far are better and more systematically studied by classifying them into families. Such groupings contain members, which are similar to one another in chemical p..

Question: Find the median of : 15, 8, 14, 20, 13, 12, 16. Answer: 8, 12, 13, 14, 15, 16, 20 n = 7 (odd) Median = 1..

Question: A ball is thrown up and attains a maximum height of 100 m. Its initial speed was 1. 9.8 m/s 2. 44.2 m/s 3. 19.6 m/s 4. 98 m/s Answer: ..