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Can you explain me, with examples, what the CONGIUNTIVO tense is and how do you form it?

While we use the present indicative tense to talk about certainty and facts, we use the present subjunctive form after a verb or expression of emotion, opinion, desire, uncertainty or a command in the pre...

Answered by • Italian tutor

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What is the effect of an increase in supply on the economy?

An increase in supply, such as that caused by a fall in producer costs causes prices to fall, and the quantity consumed to increase.
Diagrammatically, this is represented by an outwards shift of the...

Answered by • Economics tutor

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Calculate the first derivative of f( x)= 3x^3+2x^2-5

f’(x)= 9x^3+4x

Answered by • Maths tutor

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The point P has coordinates (4, 5). The point Q has coordinates (a, b). A line perpendicular to PQ is given by the equation 5x+3y=11. Find an expression for b in terms of a.

First we should find the gradient of the line perpendicular to PQ by rearranging the equation.5x+3y=113y=11-5xy=11/5 -5/3xy= -5/3x + 11gradient is -5/3.We know that the gradients of perpendicular lines mu...

Answered by Staś B. • Maths tutor

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Describe the bonding in i)NaCl, ii) HCl, iii) Mg

Sodium chloride forms an ionic bond, between metallic sodium and non-metallic chlorine. An atom of sodium transfers an electron to an atom of chlorine, forming a positive...

Answered by Yasmin B. • Chemistry tutor

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