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A quarter circle has a radius of 8, calculate the area giving your answer in terms of pi

area of a circle = pi x radius^2
64pi/4 = 16pi
Student must be aware of the equation for the area of a circle and that they must divide by 4 to get the answer here

Answered by Sam D. Maths tutor
7083 Views

2435 units of gas used in November, costing 4.12p per unit. The gas company also charge 9.43p per day. The total cost has an additional 5% in VAT. What is the gas bill for the month of November?

30 days in November; (30 X 9.43) = 282.9p (2435 X 4.12) = 10032.2p (10032.2 + 282.9) = 10315.1p 5% in VAT so total price is 105% of 10032.2p Convert 105% to decimal; 1.05 (1.05 X 10315...

Answered by Andrew G. Maths tutor
2943 Views

Solve the simultaneous equations: [4x-y=3] and [6x +2y=1]

(1) 4x-y=3(2) 6x+2y=1Eliminate y; (1) X 2 => (3) 8x-2y=6 Add (2) to (3) 8x - 2y = 6 +(6x + 2y) = 114x = 7x=1/2 If x=1/2 then,2-y=3 y= -1

Answered by Andrew G. Maths tutor
3415 Views

Integrate 2x^5 - 1/4x^3 - 5

I = x6/3 - x4/16 -5x + C

Answered by Rocio C. Maths tutor
2445 Views

Factorise 5 – 10m

5(1-2m)

Answered by Rocio C. Maths tutor
23877 Views

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