Mathematics
Consider the expression (i) How many terms are there? What do you call such an expression? (ii) List out the terms. (iii) In the term , write down the numerical coefficient and the literal coefficient. (iv) In the term , what is the coefficient of x?
Related Questions
Statement I: The value of the expression 4y + 3x when x = 2 and y = 3 is 22.
Statement II: An expression is a combination of terms connected by mathematical operations of addition, subtraction or both.
Statement I is true but statement II is false.
Statement I is false but statement II is true.
Both Statement I and statement II are true.
Both Statement I and statement II are false.
Look at the following matchstick pattern of polygons. Complete the table. Also write the general rule that gives the number of matchsticks.
Number of polygons 1 2 3 4 5 … n Number of matchsticks … … … … … … … Write an algebraic expression for each of the following:
(i) If 1 metre cloth costs ₹ x, then what is cost of 6 metre cloth?
(ii) If the cost of a notebook is ₹ x and the cost of a book is ₹ y, then what is the cost of 5 notebooks and 2 books?
(iii) The score of Ragini in Mathematics is 23 more than two-third of her score in English. If she scores x marks in English, what is her score in Mathematics?
(iv) If the length of a side of a regular pentagon is x cm, then what is the perimeter of the pentagon?
When x = 4 and y = 2, find the value of:
(i) x + y
(ii) x - y
(iii) x2 + 2
(iv) x2 - 2xy + y2