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Simplify (48)^(1/2)

Simplify 48 1/2 :48 1/2 =(12 4) 1/2 =(4 3 4) 1/2 =(4) 1/2 (4) 1/2 (3) 1/2 =2 2*(3) 1/2 =4(3) 1/2
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Answered by Alex N. • Maths tutor
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The complex numbers Z and W are given by Z=3+3i and W=6-i. Giving your answers in the form of x+yi and showing how you clearly obtain them, find: i) 3Z-4W ii) Z*/W

i) 3Z-4WFor this question it is just the matter of substituting the complex numbers of Z and W into the equation. So, 3(4+3i)-4(6-i). Then multiply out the brackets to get 12+9i-24+4i. Finally simply to get ...
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Answered by James B. • Maths tutor
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If one angle in a triangle is 60° and another is 33°, what is the third angle?

87 °. This is because there are 3 angles and 180 ° in a triangle. 180 ° - 60 ° - 33 ° = 87 °
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Answered by Kate F. • Maths tutor
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What are the products when an acid reacts with a metal?

An acid and metal react to form hydrogen and a salt. For example: Mg + 2HCl ----> MgCl2 + H2 1 mole of magnesium reacts with 2 moles of hydrochloric acid to form 1 mole of magnesium chloride and 1 mole of...
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Answered by Kate F. • Maths tutor
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Three forces, (15i + j) N, (5qi – pj) N and (–3pi – qj) N, where p and q are constants, act on a particle. Given that the particle is in equilibrium, find the value of p and the value of q. (Mechanics 1 June 2017)

As the particle is at rest, the net force acting on the particle must be equal to zero, i.e. Fres = 0Therefore, (15i + j) + (5qi - pj) + (-3pi - qj) = 0Collating 'i' terms: 15 + 5q - 3p = 0 (Equation 1)Colla...
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Answered by Idris K. • Maths tutor
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