Question

the above question is the 6 th Question

1. Form an expression for the following statement and write all the terms of the expression.

“6 subtracted from the sum of 5 times n squared and 6 times the product of n and −1”.



2. The diameter of a wheel of a car is 35 cm. How many revolutions will it make to travel 55 km?



3. The base of a triangular field is 420 m and its altitude is 325 m. Find the cost of levelling the field at Rs.4 per 100 m2.



4. Solve the following:

i) Add: (-11x2y); (7yx2) and (-4xy2).

ii) Subtract: (5a – 10b) from (17a + 6b).



5. Find the pattern in the sequence 5, 12, 19, 26,…. and determine the algebraic expression for this sequence. Write the next 2 terms of the sequence. What would be the 50th term in the sequence?

6. Find the perimeter of the given figure. ABCDEF



Answer the following:

7. By solving the expression: −142y − 172 + 42 – 15y2 − (−62 − 102 + 18y22) − 122y2

Riya says the simplified form of a given expression is a polynomial: −292y − 112 + 14 – 30y22.

Naresh says the simplified form of a given expression is a polynomial: −292y − 232 − 62 + 6y22.

Whom do you agree with? Justify your answer.



8. Two windows with dimensions 0.8 m × 1.5 m each and a door with dimensions 2 m × 1.2 m are fixed on the wall with dimensions 11 m × 13 m. Find the total labour charges for painting the wall around the frames at the rate of Rs.22.50 per sq.m.









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Answer 1

Answer:

Sorry i didn't know questions 2 and 7