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How do you find the volume of a cylinder?

pi x r² x height

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Solve the simultaneous equations 3x=2y and 2xy=12

Answer:x=-2, y=-3 or x=2, y=3
Explanation:We can rewrite 2xy=12 as (2y)x=12, and since we know that 2y=3x, we can substitute this in to get the following equation: 3x^2 = 12. Solving this we get that...

Answered by Scarlett S. • Maths tutor

3260 Views

Differentiate the following: y = 3x^(1/3) + 2

Answer: dy/dx = x^-2/3Explanation: When differentiating, we bring the power to the front and subtract 1 from the power to get the new power. So the first term becomes (3 x 1/3)x^{(1/3 - 1)}

Answered by Scarlett S. • Maths tutor

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Solve the equation x^2 + 3x - 10 = 0

Identify a, b and c based in the GENERAL FORM OF A QUADRATIC EQUATION: ax² + bx + c (= 0)ax² + bx + c = 0 x² + 3x - 10 =...

Answered by Emmanuel A. • Maths tutor

2956 Views

Solve the equation 2X^2 + 5X + 2 = 0 stating clearly the number of roots

Firstly, we can identify 2X² + 5X + 2 = 0 as a quadratic equation by the fact it is an X² term, an X term and an integer term all within the same equation, and is equal to zero. To s...

Answered by Luke P. • Maths tutor

3118 Views