Question

Exercise 22.3
1. The square of a number is 14 more than five times the number. Find the two possible numbers
for which this is true.
2. Rectangle has sides of length x cm and y cmn if the perimeter of the rectangle is 22 cm and the
area of the rectangle is 24 cm", use algebra to find the dimensions of the rectangle.
3. A ball is thrown from a building and falls 3t + 5t squared metres in two seconds. After how many
seconds has the ball falling 6 metres?
4. The cube of a number is 152 more than the cube of another number that is 2 smaller. What are
the two possible numbers for which this is true,
5. The diagram shows an open topped cylinder with radius r centimetres and height 12cm. If the
outer surface area of the cylinder is 81 ji centimetre squared, find the radius of the cylinder​

Answer 1

Answer:

Please mark BRAINLIEST...