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Write 870,000,000 in standard form

The decimal point needs to move to the left as the number is larger then 10 so the power of 10 in the answer will be positive.870000000.87000000.8700000.870000.87000.8700.870.87.8.7The decimal point moves...

Answered by Matthew T. • Maths tutor

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Cylinder A has the volume 8π cm^3 and the height 2 cm. Cylinder B is a similar shape with a volume of 216 cm^3. i) find the linear scale factor. ii) find the surface area of cylinder B

i) Linear scale factor cubed = volume scale factor = V_B/V_A= 216π/8π = 27 LSF³=27 LSF = 3 ii...

Answered by Jacob K. • Maths tutor

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Edexcel November 2016 1H Maths. Q27

The sphere has radius 6 cm. The solid cylinder has a base radius of 3cm and a height of h cm. The total surface area of the cylinder is twice the total surface area of the sphere. Work out the ratio of th...

Answered by Josh V. • Maths tutor

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Solve x^2 + 10x - 3 = 0

completing the square (x+5)² -25 -3 =0 (x+5)² -28 = 0 (x+5)² = 28 x= ±2√7 -5

Answered by Isabelle H. • Maths tutor

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How do you factorize a quadratic equation with all positive numbers?

The easiest way to approach this is by trying to find two numbers which add up to the x coefficient (the number attached before the x) and multiply to the constant (the number on its own). For example...x...

Answered by Charlotte B. • Maths tutor

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