Mathematics, 25.07.2020 15:01, rasv3491

1. A car bought for $20,000. Its value depreciates by 10% each year for 3 years. What is the car's worth after3 years? 2. Find the perimeter of a circle whose radius is 3.5cm. (Take pi = 22/7)

3. The volume of a cone is 1540cm³. If its radius is 7cm, calculate the height of the cone. (Take pi = 22/7)
4. What is the coefficient of b in the expression b² - 5b +18
5. Expand (x +2) (9 - x)

7. Find x and y in the simultaneous equations. x + y = 4 3x + y = 8
8. Factorize a² +3ab - 5ab - 15b²
9. The bearing of a staff room from the assembly ground is 195degrees, what is the bearing of the assembly ground from the staff room?

Answers: 2

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1. A car bought for $20,000. Its value depreciates by 10% each year for 3 years. What is the car's w...