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When to use “depuis” and when to use “il y a” with time expressions

1. Depuis I. If you want to say you have done something since a certain point in time, you use depuis with the present tense. o Je travaille comme professeur depuis 2017 >> I’ve worked as...

Answered by Faye H. • French tutor

2153 Views

Find the gradient at the point (0, ln 2) on the curve with equation e^2y = 5 − e^−x . [4]

Figure out what skills are being tested: implicit differentiation and exponentials and logarithms.e^2y= 5 - e^-x2e^2y(dy/dx) = e^-x(dy/dx) = e^-x/ 2e

Answered by Theodore C. • Maths tutor

4114 Views

Calculate the resistance of a uniform wire of diameter 0.5mm, length 2m and resistivity 1.7x10^-8Ωm.

R=ρ L/AR= (1.7*10^-8 2)/(0.0005^2π/4)R=0.173Ω

Answered by Heather W. • Physics tutor

2299 Views

Explain what is meant when it is said that there are inefficiencies in the production of goods and the allocation of resources.

The economy achieves optimal allocation of resources when productive and allocative efficiency are attained: · Productive efficiency occurs when products are made using the least poss...

Answered by Blanca S. • Economics tutor

5997 Views

Why is the demand curve downwards sloping?

The demand curve slopes downwards due to the idea of diminishing marginal utility. This is the idea that the consumer receives less additional utility for each extra unit of the good consumed.The substitu...

Answered by Joanna B. • Economics tutor

3318 Views