Question

Q.5 Do as directed.
1. Simplify: 7x2 + x(x + y – 1) – y(2x + 4) – 3(x – y -4)
2. The area of a trapezium is 1440 cm2. If the lengths of its parallel sides are 54.6cm and 35.4cm, find the height.
3. A rectangular paper of width 15cm is rolled along its width and a cylinder of radius 14cm is formed. Find the volume of the cylinder. (Take 22/7 for )

pls answer fast​

Answer 1

Step-by-step explanation:

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