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What is the difference between the Prétérito Perfeito Simples (PPS) and the Imperfeito do Indicativo?

To begin, the first rule to memorize is that both the PPS and the Imperfeito do Indicativo are used in order to narrate an action that happened in the past, that has already happened . However, this similari...
GR
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Solve the simultaneous equations: 3x + 2y =4 4x + 5y =17

You are trying to find out the value of 'x' and the value of 'y'. This means that you need to be able to take away one equation from the other. 3x + 2y = 4 - we are going to times this equation by 4 = 12x + ...
EW
Answered by Ellie W. • Maths tutor
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A stone, of mass m, falls vertically downwards under gravity through still water. At time t, the stone has speed v and it experiences a resistance force of magnitude lmv, where l is a constant.

A stone, of mass m, falls vertically downwards under gravity through still water. At time t, the stone has speed v and it experiences a resistance force of magnitude lmv, where l is a constant. QUESTION: a. ...
RH
Answered by Ronan H. • Maths tutor
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How do you solve the following simultaneous equations? 5x+6y=3 2x-3y=12

5x+6y=3 2x-3y=12 6y=3-5x 2x=12+3y 3y=2x-12 Therefore, 6y=2(2x-12)=4x-24 4x-24=3-5x 9x=27 x=3
SI
Answered by Sathana I. • Maths tutor
5184 Views

What is the role of ADH in water regulation

ADH is a hormone made in the hypothalamus and secreted from the pituitary gland. It circulates in the blood to the collecting ducts of the kidneys where it makes aquaporin channels through the collecting duc...
LM
Answered by Luwaiza M. • Biology tutor
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