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Solve 5x^2 - 4x - 3 =0. Give answers to 3 significant figures

1.27 and -0.472
MJ
Answered by Marcus J. • Maths tutor
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The 4th and 5th multiples of a number are 24 and 30. What is the number?

6
MJ
Answered by Marcus J. • Maths tutor
2824 Views

Why is gravitational potential energy negative?

While on the Earth's surface, you need to put in energy to move upwards, due to the force of gravity from the Earth's mass acting on you - eg jumping upwards requires energy. The force of gravity is stronges...
Answered by • Physics tutor
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Expand and simplify (x-2)(2x-3)(x+1)

2x 3 + x 2 - 7x - 6
MJ
Answered by Marcus J. • Maths tutor
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Find the inverse function of f(x) = 5 / (x - 4)

To find the inverse of a function you follow 3 steps.Replace f (x) with x and any x variables with y Rearrange this equation into the form y = x variablesReplace the y with f ^-1 (x) and you have your answer...
KG
Answered by Kristen G. • Maths tutor
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