Chapter 8 Algebraic Expressions and Operations on them Set 8.1 Question 1. Classify the following algebraic expressions as monomials, binomials, trinomials or polynomials. i. 7x ii. 5y – 7z iii.…
Chapter 7 Joint Bar Graph Question 1. The number of saplings planted by schools on World Tree Day is given in the table below. Draw a joint bar graph to…
Chapter 6 Indices Set 6.5 Question 1. Find the square root: i. 625 ii. 1225 iii. 289 iv. 4096 v. 1089 Solution: i. 625 ∴ 625 = 5 x 5…
Chapter 6 Indices Set 6.4 Question 1. Simplify: ii. (34)-2 = 34×(-2) = 3-8 v. (65)4 = 65×4 = 620 Question 2. Write the following numbers using positive indices:
Chapter 6 Indices Set 6.3 Question 1. Simplify: i. a6 ÷ a4 ii. m5 ÷ m8 iii. p3 ÷ p13 iv. x10 ÷ x10 Solution: i. a6 ÷ a4 =…
Chapter 6 Indices Set 6.2 Question 1. Simplify: Solution: i. 74 × 72 = 74+2 = 76 ii. (-11)5 × (-11)2 = (-11)5+2 = (-11)7 v. a16 × a7 =…
Chapter 6 Indices Set 6.1 Question 1. Complete the table below: Sr. No. Indices (Numbers in index form) Base Index Multiplication form Value i. 34 3 4 3 x 3…
Chapter 5 Operations on Rational Numbers Set 5.4 Question 1. Simplify the following expressions. i. 50 x 5 ÷ 2 + 24 ii. (13 x 4) ÷ 2 – 26…
Chapter 5 Operations on Rational Numbers Set 5.3 Question 1. Write the following rational numbers in decimal form. Solution: i. 13/4 ii. -7/8 iii. 73/5 iv. 5/12 v. 22/7 vi.…
Chapter 5 Operations on Rational Numbers Set 5.2 Question 1. Write three rational numbers that lie between the two given numbers. Intext Questions and Activities Question 1. Answer the following…